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Finding the Fourth Proportional to 475,217.37, 655,800.48 and 257,426.55

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Solution

The fourth proportional to 475,217.37, 655,800.48 and 257,426.55 is: 355,248.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,217.37 : 655,800.48 = 257,426.55 : x
  2. Step 2: Convert to fraction form
    475,217.37/655,800.48 = 257,426.55/x
  3. Step 3: Cross multiply
    475,217.37x = 655,800.48 × 257,426.55
  4. Step 4: Simplify right side
    475,217.37x = 168,820,455,054.74
  5. Step 5: Solve for x
    x = 168,820,455,054.74/475,217.37
  6. Step 6: Final answer
    x = 355,248.91

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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.