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Finding the Fourth Proportional to 418,520.72, 577,532.72 and 234,749.18

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Solution

The fourth proportional to 418,520.72, 577,532.72 and 234,749.18 is: 323,939.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,520.72 : 577,532.72 = 234,749.18 : x
  2. Step 2: Convert to fraction form
    418,520.72/577,532.72 = 234,749.18/x
  3. Step 3: Cross multiply
    418,520.72x = 577,532.72 × 234,749.18
  4. Step 4: Simplify right side
    418,520.72x = 135,575,328,381.76
  5. Step 5: Solve for x
    x = 135,575,328,381.76/418,520.72
  6. Step 6: Final answer
    x = 323,939.35

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1.5x scale

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.