Home / 402,972.98-556,091.22-219,205.74

Finding the Fourth Proportional to 402,972.98, 556,091.22 and 219,205.74

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Solution

The fourth proportional to 402,972.98, 556,091.22 and 219,205.74 is: 302,497.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,972.98 : 556,091.22 = 219,205.74 : x
  2. Step 2: Convert to fraction form
    402,972.98/556,091.22 = 219,205.74/x
  3. Step 3: Cross multiply
    402,972.98x = 556,091.22 × 219,205.74
  4. Step 4: Simplify right side
    402,972.98x = 121,898,390,294.97
  5. Step 5: Solve for x
    x = 121,898,390,294.97/402,972.98
  6. Step 6: Final answer
    x = 302,497.68

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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.