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Finding the Fourth Proportional to 216,254.76, 298,352.40 and 135,652.88

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Solution

The fourth proportional to 216,254.76, 298,352.40 and 135,652.88 is: 187,151.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,254.76 : 298,352.40 = 135,652.88 : x
  2. Step 2: Convert to fraction form
    216,254.76/298,352.40 = 135,652.88/x
  3. Step 3: Cross multiply
    216,254.76x = 298,352.40 × 135,652.88
  4. Step 4: Simplify right side
    216,254.76x = 40,472,360,823.15
  5. Step 5: Solve for x
    x = 40,472,360,823.15/216,254.76
  6. Step 6: Final answer
    x = 187,151.31

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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.