Home / 316,006.09-436,088.32-172,766.10

Finding the Fourth Proportional to 316,006.09, 436,088.32 and 172,766.10

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Solution

The fourth proportional to 316,006.09, 436,088.32 and 172,766.10 is: 238,417.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,006.09 : 436,088.32 = 172,766.10 : x
  2. Step 2: Convert to fraction form
    316,006.09/436,088.32 = 172,766.10/x
  3. Step 3: Cross multiply
    316,006.09x = 436,088.32 × 172,766.10
  4. Step 4: Simplify right side
    316,006.09x = 75,341,278,301.95
  5. Step 5: Solve for x
    x = 75,341,278,301.95/316,006.09
  6. Step 6: Final answer
    x = 238,417.17

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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.