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Finding the Fourth Proportional to 347,711.60, 521,567.40 and 123,325.40

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Solution

The fourth proportional to 347,711.60, 521,567.40 and 123,325.40 is: 184,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,711.60 : 521,567.40 = 123,325.40 : x
  2. Step 2: Convert to fraction form
    347,711.60/521,567.40 = 123,325.40/x
  3. Step 3: Cross multiply
    347,711.60x = 521,567.40 × 123,325.40
  4. Step 4: Simplify right side
    347,711.60x = 64,322,508,231.96
  5. Step 5: Solve for x
    x = 64,322,508,231.96/347,711.60
  6. Step 6: Final answer
    x = 184,988.10

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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.