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Finding the Fourth Proportional to 154,487.86, 231,544.65 and 65,554.54

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Solution

The fourth proportional to 154,487.86, 231,544.65 and 65,554.54 is: 98,252.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,487.86 : 231,544.65 = 65,554.54 : x
  2. Step 2: Convert to fraction form
    154,487.86/231,544.65 = 65,554.54/x
  3. Step 3: Cross multiply
    154,487.86x = 231,544.65 × 65,554.54
  4. Step 4: Simplify right side
    154,487.86x = 15,178,803,154.03
  5. Step 5: Solve for x
    x = 15,178,803,154.03/154,487.86
  6. Step 6: Final answer
    x = 98,252.40

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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.