Home / 316,153.04-436,285.68-172,909.94

Finding the Fourth Proportional to 316,153.04, 436,285.68 and 172,909.94

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Solution

The fourth proportional to 316,153.04, 436,285.68 and 172,909.94 is: 238,612.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,153.04 : 436,285.68 = 172,909.94 : x
  2. Step 2: Convert to fraction form
    316,153.04/436,285.68 = 172,909.94/x
  3. Step 3: Cross multiply
    316,153.04x = 436,285.68 × 172,909.94
  4. Step 4: Simplify right side
    316,153.04x = 75,438,130,751.66
  5. Step 5: Solve for x
    x = 75,438,130,751.66/316,153.04
  6. Step 6: Final answer
    x = 238,612.70

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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.