Home / 316,180.29-436,325.63-172,943.13

Finding the Fourth Proportional to 316,180.29, 436,325.63 and 172,943.13

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Solution

The fourth proportional to 316,180.29, 436,325.63 and 172,943.13 is: 238,659.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,180.29 : 436,325.63 = 172,943.13 : x
  2. Step 2: Convert to fraction form
    316,180.29/436,325.63 = 172,943.13/x
  3. Step 3: Cross multiply
    316,180.29x = 436,325.63 × 172,943.13
  4. Step 4: Simplify right side
    316,180.29x = 75,459,519,286.71
  5. Step 5: Solve for x
    x = 75,459,519,286.71/316,180.29
  6. Step 6: Final answer
    x = 238,659.78

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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.