Home / 272,442.21-408,699.02-90,012.41

Finding the Fourth Proportional to 272,442.21, 408,699.02 and 90,012.41

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Solution

The fourth proportional to 272,442.21, 408,699.02 and 90,012.41 is: 135,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,442.21 : 408,699.02 = 90,012.41 : x
  2. Step 2: Convert to fraction form
    272,442.21/408,699.02 = 90,012.41/x
  3. Step 3: Cross multiply
    272,442.21x = 408,699.02 × 90,012.41
  4. Step 4: Simplify right side
    272,442.21x = 36,787,981,711.34
  5. Step 5: Solve for x
    x = 36,787,981,711.34/272,442.21
  6. Step 6: Final answer
    x = 135,030.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.