Home / 402,332.20-555,227.70-221,055.44

Finding the Fourth Proportional to 402,332.20, 555,227.70 and 221,055.44

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Solution

The fourth proportional to 402,332.20, 555,227.70 and 221,055.44 is: 305,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,332.20 : 555,227.70 = 221,055.44 : x
  2. Step 2: Convert to fraction form
    402,332.20/555,227.70 = 221,055.44/x
  3. Step 3: Cross multiply
    402,332.20x = 555,227.70 × 221,055.44
  4. Step 4: Simplify right side
    402,332.20x = 122,736,103,523.69
  5. Step 5: Solve for x
    x = 122,736,103,523.69/402,332.20
  6. Step 6: Final answer
    x = 305,061.60

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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.