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Finding the Fourth Proportional to 153,818.10, 230,727.15 and 139,793.96

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Solution

The fourth proportional to 153,818.10, 230,727.15 and 139,793.96 is: 209,690.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,818.10 : 230,727.15 = 139,793.96 : x
  2. Step 2: Convert to fraction form
    153,818.10/230,727.15 = 139,793.96/x
  3. Step 3: Cross multiply
    153,818.10x = 230,727.15 × 139,793.96
  4. Step 4: Simplify right side
    153,818.10x = 32,254,262,554.83
  5. Step 5: Solve for x
    x = 32,254,262,554.83/153,818.10
  6. Step 6: Final answer
    x = 209,690.94

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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.