Home / 317,583.28-438,263.15-172,392

Finding the Fourth Proportional to 317,583.28, 438,263.15 and 172,392

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Solution

The fourth proportional to 317,583.28, 438,263.15 and 172,392 is: 237,900.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,583.28 : 438,263.15 = 172,392 : x
  2. Step 2: Convert to fraction form
    317,583.28/438,263.15 = 172,392/x
  3. Step 3: Cross multiply
    317,583.28x = 438,263.15 × 172,392
  4. Step 4: Simplify right side
    317,583.28x = 75,553,060,954.80
  5. Step 5: Solve for x
    x = 75,553,060,954.80/317,583.28
  6. Step 6: Final answer
    x = 237,900.00

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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.