Home / 402,065.18-554,824.71-220,775.84

Finding the Fourth Proportional to 402,065.18, 554,824.71 and 220,775.84

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Solution

The fourth proportional to 402,065.18, 554,824.71 and 220,775.84 is: 304,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,065.18 : 554,824.71 = 220,775.84 : x
  2. Step 2: Convert to fraction form
    402,065.18/554,824.71 = 220,775.84/x
  3. Step 3: Cross multiply
    402,065.18x = 554,824.71 × 220,775.84
  4. Step 4: Simplify right side
    402,065.18x = 122,491,888,628.88
  5. Step 5: Solve for x
    x = 122,491,888,628.88/402,065.18
  6. Step 6: Final answer
    x = 304,656.80

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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.