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Finding the Fourth Proportional to 655,542.72, 983,438.10 and 256,158.24

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Solution

The fourth proportional to 655,542.72, 983,438.10 and 256,158.24 is: 384,285.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,542.72 : 983,438.10 = 256,158.24 : x
  2. Step 2: Convert to fraction form
    655,542.72/983,438.10 = 256,158.24/x
  3. Step 3: Cross multiply
    655,542.72x = 983,438.10 × 256,158.24
  4. Step 4: Simplify right side
    655,542.72x = 251,915,772,844.94
  5. Step 5: Solve for x
    x = 251,915,772,844.94/655,542.72
  6. Step 6: Final answer
    x = 384,285.82

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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.