Home / 316,120.34-436,237.23-172,877.31

Finding the Fourth Proportional to 316,120.34, 436,237.23 and 172,877.31

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Solution

The fourth proportional to 316,120.34, 436,237.23 and 172,877.31 is: 238,565.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,120.34 : 436,237.23 = 172,877.31 : x
  2. Step 2: Convert to fraction form
    316,120.34/436,237.23 = 172,877.31/x
  3. Step 3: Cross multiply
    316,120.34x = 436,237.23 × 172,877.31
  4. Step 4: Simplify right side
    316,120.34x = 75,415,518,520.11
  5. Step 5: Solve for x
    x = 75,415,518,520.11/316,120.34
  6. Step 6: Final answer
    x = 238,565.85

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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.