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Finding the Fourth Proportional to 400,208.86, 600,393.63 and 147,490.66

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Solution

The fourth proportional to 400,208.86, 600,393.63 and 147,490.66 is: 221,265.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,208.86 : 600,393.63 = 147,490.66 : x
  2. Step 2: Convert to fraction form
    400,208.86/600,393.63 = 147,490.66/x
  3. Step 3: Cross multiply
    400,208.86x = 600,393.63 × 147,490.66
  4. Step 4: Simplify right side
    400,208.86x = 88,552,452,748.50
  5. Step 5: Solve for x
    x = 88,552,452,748.50/400,208.86
  6. Step 6: Final answer
    x = 221,265.60

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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.