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Finding the Fourth Proportional to 230,470.83, 318,070.64 and 139,849.76

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Solution

The fourth proportional to 230,470.83, 318,070.64 and 139,849.76 is: 193,005.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,470.83 : 318,070.64 = 139,849.76 : x
  2. Step 2: Convert to fraction form
    230,470.83/318,070.64 = 139,849.76/x
  3. Step 3: Cross multiply
    230,470.83x = 318,070.64 × 139,849.76
  4. Step 4: Simplify right side
    230,470.83x = 44,482,100,377.44
  5. Step 5: Solve for x
    x = 44,482,100,377.44/230,470.83
  6. Step 6: Final answer
    x = 193,005.34

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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.