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Finding the Fourth Proportional to 400,083.12, 600,222.60 and 281,985.12

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Solution

The fourth proportional to 400,083.12, 600,222.60 and 281,985.12 is: 423,046.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,083.12 : 600,222.60 = 281,985.12 : x
  2. Step 2: Convert to fraction form
    400,083.12/600,222.60 = 281,985.12/x
  3. Step 3: Cross multiply
    400,083.12x = 600,222.60 × 281,985.12
  4. Step 4: Simplify right side
    400,083.12x = 169,253,841,887.71
  5. Step 5: Solve for x
    x = 169,253,841,887.71/400,083.12
  6. Step 6: Final answer
    x = 423,046.70

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1.5x scale

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.