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Finding the Fourth Proportional to 347,720.32, 521,624.40 and 98,402.40

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Solution

The fourth proportional to 347,720.32, 521,624.40 and 98,402.40 is: 147,616.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,720.32 : 521,624.40 = 98,402.40 : x
  2. Step 2: Convert to fraction form
    347,720.32/521,624.40 = 98,402.40/x
  3. Step 3: Cross multiply
    347,720.32x = 521,624.40 × 98,402.40
  4. Step 4: Simplify right side
    347,720.32x = 51,329,092,858.56
  5. Step 5: Solve for x
    x = 51,329,092,858.56/347,720.32
  6. Step 6: Final answer
    x = 147,616.03

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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.