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Finding the Fourth Proportional to 267,015.54, 400,439.62 and 77,488.98

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Solution

The fourth proportional to 267,015.54, 400,439.62 and 77,488.98 is: 116,209.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,015.54 : 400,439.62 = 77,488.98 : x
  2. Step 2: Convert to fraction form
    267,015.54/400,439.62 = 77,488.98/x
  3. Step 3: Cross multiply
    267,015.54x = 400,439.62 × 77,488.98
  4. Step 4: Simplify right side
    267,015.54x = 31,029,657,644.77
  5. Step 5: Solve for x
    x = 31,029,657,644.77/267,015.54
  6. Step 6: Final answer
    x = 116,209.18

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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.