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Finding the Fourth Proportional to 313,553.92, 432,702.52 and 170,312.71

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Solution

The fourth proportional to 313,553.92, 432,702.52 and 170,312.71 is: 235,030.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,553.92 : 432,702.52 = 170,312.71 : x
  2. Step 2: Convert to fraction form
    313,553.92/432,702.52 = 170,312.71/x
  3. Step 3: Cross multiply
    313,553.92x = 432,702.52 × 170,312.71
  4. Step 4: Simplify right side
    313,553.92x = 73,694,738,805.03
  5. Step 5: Solve for x
    x = 73,694,738,805.03/313,553.92
  6. Step 6: Final answer
    x = 235,030.51

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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.