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Finding the Fourth Proportional to 356,105.60, 534,772.80 and 345,046.40

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Solution

The fourth proportional to 356,105.60, 534,772.80 and 345,046.40 is: 518,164.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,105.60 : 534,772.80 = 345,046.40 : x
  2. Step 2: Convert to fraction form
    356,105.60/534,772.80 = 345,046.40/x
  3. Step 3: Cross multiply
    356,105.60x = 534,772.80 × 345,046.40
  4. Step 4: Simplify right side
    356,105.60x = 184,521,429,457.92
  5. Step 5: Solve for x
    x = 184,521,429,457.92/356,105.60
  6. Step 6: Final answer
    x = 518,164.92

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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.