Home / 402,243.74-555,099.93-220,959.35

Finding the Fourth Proportional to 402,243.74, 555,099.93 and 220,959.35

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Solution

The fourth proportional to 402,243.74, 555,099.93 and 220,959.35 is: 304,925.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,243.74 : 555,099.93 = 220,959.35 : x
  2. Step 2: Convert to fraction form
    402,243.74/555,099.93 = 220,959.35/x
  3. Step 3: Cross multiply
    402,243.74x = 555,099.93 × 220,959.35
  4. Step 4: Simplify right side
    402,243.74x = 122,654,519,717.85
  5. Step 5: Solve for x
    x = 122,654,519,717.85/402,243.74
  6. Step 6: Final answer
    x = 304,925.86

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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.