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Finding the Fourth Proportional to 583.34, 874.99 and 339.68

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Solution

The fourth proportional to 583.34, 874.99 and 339.68 is: 509.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.34 : 874.99 = 339.68 : x
  2. Step 2: Convert to fraction form
    583.34/874.99 = 339.68/x
  3. Step 3: Cross multiply
    583.34x = 874.99 × 339.68
  4. Step 4: Simplify right side
    583.34x = 297,219.22
  5. Step 5: Solve for x
    x = 297,219.22/583.34
  6. Step 6: Final answer
    x = 509.52

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Half scale
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Double scale
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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.