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Finding the Fourth Proportional to 356,499.60, 534,490.20 and 146,029.20

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Solution

The fourth proportional to 356,499.60, 534,490.20 and 146,029.20 is: 218,937.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,499.60 : 534,490.20 = 146,029.20 : x
  2. Step 2: Convert to fraction form
    356,499.60/534,490.20 = 146,029.20/x
  3. Step 3: Cross multiply
    356,499.60x = 534,490.20 × 146,029.20
  4. Step 4: Simplify right side
    356,499.60x = 78,051,176,313.84
  5. Step 5: Solve for x
    x = 78,051,176,313.84/356,499.60
  6. Step 6: Final answer
    x = 218,937.63

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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.