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Finding the Fourth Proportional to 310,257.76, 428,032.58 and 179,411.23

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Solution

The fourth proportional to 310,257.76, 428,032.58 and 179,411.23 is: 247,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,257.76 : 428,032.58 = 179,411.23 : x
  2. Step 2: Convert to fraction form
    310,257.76/428,032.58 = 179,411.23/x
  3. Step 3: Cross multiply
    310,257.76x = 428,032.58 × 179,411.23
  4. Step 4: Simplify right side
    310,257.76x = 76,793,852,508.68
  5. Step 5: Solve for x
    x = 76,793,852,508.68/310,257.76
  6. Step 6: Final answer
    x = 247,516.30

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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.