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Finding the Fourth Proportional to 347,754.60, 521,502.30 and 123,028.20

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Solution

The fourth proportional to 347,754.60, 521,502.30 and 123,028.20 is: 184,496.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,754.60 : 521,502.30 = 123,028.20 : x
  2. Step 2: Convert to fraction form
    347,754.60/521,502.30 = 123,028.20/x
  3. Step 3: Cross multiply
    347,754.60x = 521,502.30 × 123,028.20
  4. Step 4: Simplify right side
    347,754.60x = 64,159,489,264.86
  5. Step 5: Solve for x
    x = 64,159,489,264.86/347,754.60
  6. Step 6: Final answer
    x = 184,496.45

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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.