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Finding the Fourth Proportional to 499,345.32, 749,018.94 and 125,368.36

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Solution

The fourth proportional to 499,345.32, 749,018.94 and 125,368.36 is: 188,052.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,345.32 : 749,018.94 = 125,368.36 : x
  2. Step 2: Convert to fraction form
    499,345.32/749,018.94 = 125,368.36/x
  3. Step 3: Cross multiply
    499,345.32x = 749,018.94 × 125,368.36
  4. Step 4: Simplify right side
    499,345.32x = 93,903,276,116.74
  5. Step 5: Solve for x
    x = 93,903,276,116.74/499,345.32
  6. Step 6: Final answer
    x = 188,052.78

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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.