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Finding the Fourth Proportional to 479,235.50, 661,345 and 267,267.50

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Solution

The fourth proportional to 479,235.50, 661,345 and 267,267.50 is: 368,829.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,235.50 : 661,345 = 267,267.50 : x
  2. Step 2: Convert to fraction form
    479,235.50/661,345 = 267,267.50/x
  3. Step 3: Cross multiply
    479,235.50x = 661,345 × 267,267.50
  4. Step 4: Simplify right side
    479,235.50x = 176,756,024,787.50
  5. Step 5: Solve for x
    x = 176,756,024,787.50/479,235.50
  6. Step 6: Final answer
    x = 368,829.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.