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Finding the Fourth Proportional to 354,442.74, 488,854.51 and 227,130.18

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Solution

The fourth proportional to 354,442.74, 488,854.51 and 227,130.18 is: 313,262.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,442.74 : 488,854.51 = 227,130.18 : x
  2. Step 2: Convert to fraction form
    354,442.74/488,854.51 = 227,130.18/x
  3. Step 3: Cross multiply
    354,442.74x = 488,854.51 × 227,130.18
  4. Step 4: Simplify right side
    354,442.74x = 111,033,612,850.11
  5. Step 5: Solve for x
    x = 111,033,612,850.11/354,442.74
  6. Step 6: Final answer
    x = 313,262.48

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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.