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Finding the Fourth Proportional to 316,077.60, 474,001.20 and 105,722.40

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Solution

The fourth proportional to 316,077.60, 474,001.20 and 105,722.40 is: 158,545.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,077.60 : 474,001.20 = 105,722.40 : x
  2. Step 2: Convert to fraction form
    316,077.60/474,001.20 = 105,722.40/x
  3. Step 3: Cross multiply
    316,077.60x = 474,001.20 × 105,722.40
  4. Step 4: Simplify right side
    316,077.60x = 50,112,544,466.88
  5. Step 5: Solve for x
    x = 50,112,544,466.88/316,077.60
  6. Step 6: Final answer
    x = 158,545.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.