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Finding the Fourth Proportional to 485,222.72, 669,611.82 and 267,439.16

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Solution

The fourth proportional to 485,222.72, 669,611.82 and 267,439.16 is: 369,068.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,222.72 : 669,611.82 = 267,439.16 : x
  2. Step 2: Convert to fraction form
    485,222.72/669,611.82 = 267,439.16/x
  3. Step 3: Cross multiply
    485,222.72x = 669,611.82 × 267,439.16
  4. Step 4: Simplify right side
    485,222.72x = 179,080,422,666.87
  5. Step 5: Solve for x
    x = 179,080,422,666.87/485,222.72
  6. Step 6: Final answer
    x = 369,068.50

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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.