Home / 316,470.20-436,729.32-173,239.29

Finding the Fourth Proportional to 316,470.20, 436,729.32 and 173,239.29

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Solution

The fourth proportional to 316,470.20, 436,729.32 and 173,239.29 is: 239,070.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,470.20 : 436,729.32 = 173,239.29 : x
  2. Step 2: Convert to fraction form
    316,470.20/436,729.32 = 173,239.29/x
  3. Step 3: Cross multiply
    316,470.20x = 436,729.32 × 173,239.29
  4. Step 4: Simplify right side
    316,470.20x = 75,658,677,318.98
  5. Step 5: Solve for x
    x = 75,658,677,318.98/316,470.20
  6. Step 6: Final answer
    x = 239,070.47

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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.