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Finding the Fourth Proportional to 399,325.20, 599,151.83 and 146,726.70

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Solution

The fourth proportional to 399,325.20, 599,151.83 and 146,726.70 is: 220,150.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,325.20 : 599,151.83 = 146,726.70 : x
  2. Step 2: Convert to fraction form
    399,325.20/599,151.83 = 146,726.70/x
  3. Step 3: Cross multiply
    399,325.20x = 599,151.83 × 146,726.70
  4. Step 4: Simplify right side
    399,325.20x = 87,911,570,081.23
  5. Step 5: Solve for x
    x = 87,911,570,081.23/399,325.20
  6. Step 6: Final answer
    x = 220,150.32

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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.