Home / 402,529.14-555,500.52-221,245.74

Finding the Fourth Proportional to 402,529.14, 555,500.52 and 221,245.74

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Solution

The fourth proportional to 402,529.14, 555,500.52 and 221,245.74 is: 305,324.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,529.14 : 555,500.52 = 221,245.74 : x
  2. Step 2: Convert to fraction form
    402,529.14/555,500.52 = 221,245.74/x
  3. Step 3: Cross multiply
    402,529.14x = 555,500.52 × 221,245.74
  4. Step 4: Simplify right side
    402,529.14x = 122,902,123,617.79
  5. Step 5: Solve for x
    x = 122,902,123,617.79/402,529.14
  6. Step 6: Final answer
    x = 305,324.79

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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.