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Finding the Fourth Proportional to 316,710.90, 437,062.50 and 173,470.50

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Solution

The fourth proportional to 316,710.90, 437,062.50 and 173,470.50 is: 239,390.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,710.90 : 437,062.50 = 173,470.50 : x
  2. Step 2: Convert to fraction form
    316,710.90/437,062.50 = 173,470.50/x
  3. Step 3: Cross multiply
    316,710.90x = 437,062.50 × 173,470.50
  4. Step 4: Simplify right side
    316,710.90x = 75,817,450,406.25
  5. Step 5: Solve for x
    x = 75,817,450,406.25/316,710.90
  6. Step 6: Final answer
    x = 239,390.09

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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.