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Finding the Fourth Proportional to 243,043.80, 364,565.70 and 154,397.40

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Solution

The fourth proportional to 243,043.80, 364,565.70 and 154,397.40 is: 231,596.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,043.80 : 364,565.70 = 154,397.40 : x
  2. Step 2: Convert to fraction form
    243,043.80/364,565.70 = 154,397.40/x
  3. Step 3: Cross multiply
    243,043.80x = 364,565.70 × 154,397.40
  4. Step 4: Simplify right side
    243,043.80x = 56,287,996,209.18
  5. Step 5: Solve for x
    x = 56,287,996,209.18/243,043.80
  6. Step 6: Final answer
    x = 231,596.10

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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.