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Finding the Fourth Proportional to 400,501.77, 600,753.11 and 147,672.72

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Solution

The fourth proportional to 400,501.77, 600,753.11 and 147,672.72 is: 221,509.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,501.77 : 600,753.11 = 147,672.72 : x
  2. Step 2: Convert to fraction form
    400,501.77/600,753.11 = 147,672.72/x
  3. Step 3: Cross multiply
    400,501.77x = 600,753.11 × 147,672.72
  4. Step 4: Simplify right side
    400,501.77x = 88,714,845,063.80
  5. Step 5: Solve for x
    x = 88,714,845,063.80/400,501.77
  6. Step 6: Final answer
    x = 221,509.25

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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.