Home / 402,575.27-555,550.59-221,285.27

Finding the Fourth Proportional to 402,575.27, 555,550.59 and 221,285.27

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Solution

The fourth proportional to 402,575.27, 555,550.59 and 221,285.27 is: 305,371.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,575.27 : 555,550.59 = 221,285.27 : x
  2. Step 2: Convert to fraction form
    402,575.27/555,550.59 = 221,285.27/x
  3. Step 3: Cross multiply
    402,575.27x = 555,550.59 × 221,285.27
  4. Step 4: Simplify right side
    402,575.27x = 122,935,160,778.17
  5. Step 5: Solve for x
    x = 122,935,160,778.17/402,575.27
  6. Step 6: Final answer
    x = 305,371.87

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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.