Home / 268,232.10-402,348.15-81,243.60

Finding the Fourth Proportional to 268,232.10, 402,348.15 and 81,243.60

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Solution

The fourth proportional to 268,232.10, 402,348.15 and 81,243.60 is: 121,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,232.10 : 402,348.15 = 81,243.60 : x
  2. Step 2: Convert to fraction form
    268,232.10/402,348.15 = 81,243.60/x
  3. Step 3: Cross multiply
    268,232.10x = 402,348.15 × 81,243.60
  4. Step 4: Simplify right side
    268,232.10x = 32,688,212,159.34
  5. Step 5: Solve for x
    x = 32,688,212,159.34/268,232.10
  6. Step 6: Final answer
    x = 121,865.40

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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.