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Finding the Fourth Proportional to 430.76, 594.06 and 283.34

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Solution

The fourth proportional to 430.76, 594.06 and 283.34 is: 390.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    430.76 : 594.06 = 283.34 : x
  2. Step 2: Convert to fraction form
    430.76/594.06 = 283.34/x
  3. Step 3: Cross multiply
    430.76x = 594.06 × 283.34
  4. Step 4: Simplify right side
    430.76x = 168,320.96
  5. Step 5: Solve for x
    x = 168,320.96/430.76
  6. Step 6: Final answer
    x = 390.75

Related Problems

Find fourth proportional to 215.38, 297.03 and 141.67
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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.