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Finding the Fourth Proportional to 145,277.28, 217,907.46 and 65,294.64

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Solution

The fourth proportional to 145,277.28, 217,907.46 and 65,294.64 is: 97,938.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,277.28 : 217,907.46 = 65,294.64 : x
  2. Step 2: Convert to fraction form
    145,277.28/217,907.46 = 65,294.64/x
  3. Step 3: Cross multiply
    145,277.28x = 217,907.46 × 65,294.64
  4. Step 4: Simplify right side
    145,277.28x = 14,228,189,154.01
  5. Step 5: Solve for x
    x = 14,228,189,154.01/145,277.28
  6. Step 6: Final answer
    x = 97,938.16

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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.