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Finding the Fourth Proportional to 313,553.72, 432,706.50 and 170,313.74

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Solution

The fourth proportional to 313,553.72, 432,706.50 and 170,313.74 is: 235,034.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,553.72 : 432,706.50 = 170,313.74 : x
  2. Step 2: Convert to fraction form
    313,553.72/432,706.50 = 170,313.74/x
  3. Step 3: Cross multiply
    313,553.72x = 432,706.50 × 170,313.74
  4. Step 4: Simplify right side
    313,553.72x = 73,695,862,337.31
  5. Step 5: Solve for x
    x = 73,695,862,337.31/313,553.72
  6. Step 6: Final answer
    x = 235,034.25

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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.