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Finding the Fourth Proportional to 347,747.60, 521,491.80 and 123,021.20

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Solution

The fourth proportional to 347,747.60, 521,491.80 and 123,021.20 is: 184,485.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,747.60 : 521,491.80 = 123,021.20 : x
  2. Step 2: Convert to fraction form
    347,747.60/521,491.80 = 123,021.20/x
  3. Step 3: Cross multiply
    347,747.60x = 521,491.80 × 123,021.20
  4. Step 4: Simplify right side
    347,747.60x = 64,154,547,026.16
  5. Step 5: Solve for x
    x = 64,154,547,026.16/347,747.60
  6. Step 6: Final answer
    x = 184,485.95

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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.