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Finding the Fourth Proportional to 542,113.60, 813,108.86 and 142,785.62

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Solution

The fourth proportional to 542,113.60, 813,108.86 and 142,785.62 is: 214,162.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,113.60 : 813,108.86 = 142,785.62 : x
  2. Step 2: Convert to fraction form
    542,113.60/813,108.86 = 142,785.62/x
  3. Step 3: Cross multiply
    542,113.60x = 813,108.86 × 142,785.62
  4. Step 4: Simplify right side
    542,113.60x = 116,100,252,702.59
  5. Step 5: Solve for x
    x = 116,100,252,702.59/542,113.60
  6. Step 6: Final answer
    x = 214,162.22

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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.