Home / 316,149.03-436,280.18-172,905.93

Finding the Fourth Proportional to 316,149.03, 436,280.18 and 172,905.93

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Solution

The fourth proportional to 316,149.03, 436,280.18 and 172,905.93 is: 238,607.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,149.03 : 436,280.18 = 172,905.93 : x
  2. Step 2: Convert to fraction form
    316,149.03/436,280.18 = 172,905.93/x
  3. Step 3: Cross multiply
    316,149.03x = 436,280.18 × 172,905.93
  4. Step 4: Simplify right side
    316,149.03x = 75,435,429,398.94
  5. Step 5: Solve for x
    x = 75,435,429,398.94/316,149.03
  6. Step 6: Final answer
    x = 238,607.18

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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.