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Finding the Fourth Proportional to 583.50, 874.92 and 290.35

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Solution

The fourth proportional to 583.50, 874.92 and 290.35 is: 435.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.50 : 874.92 = 290.35 : x
  2. Step 2: Convert to fraction form
    583.50/874.92 = 290.35/x
  3. Step 3: Cross multiply
    583.50x = 874.92 × 290.35
  4. Step 4: Simplify right side
    583.50x = 254,033.57
  5. Step 5: Solve for x
    x = 254,033.57/583.50
  6. Step 6: Final answer
    x = 435.36

Related Problems

Find fourth proportional to 291.75, 437.46 and 145.18
Half scale
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Double scale
Find fourth proportional to 584.50, 876.42 and 291.35
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.