Home / 402,240.74-555,095.79-220,956.35

Finding the Fourth Proportional to 402,240.74, 555,095.79 and 220,956.35

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Solution

The fourth proportional to 402,240.74, 555,095.79 and 220,956.35 is: 304,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,240.74 : 555,095.79 = 220,956.35 : x
  2. Step 2: Convert to fraction form
    402,240.74/555,095.79 = 220,956.35/x
  3. Step 3: Cross multiply
    402,240.74x = 555,095.79 × 220,956.35
  4. Step 4: Simplify right side
    402,240.74x = 122,651,936,883.29
  5. Step 5: Solve for x
    x = 122,651,936,883.29/402,240.74
  6. Step 6: Final answer
    x = 304,921.72

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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.