Home / 268,921.66-402,938.40-156,285.58

Finding the Fourth Proportional to 268,921.66, 402,938.40 and 156,285.58

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Solution

The fourth proportional to 268,921.66, 402,938.40 and 156,285.58 is: 234,170.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,921.66 : 402,938.40 = 156,285.58 : x
  2. Step 2: Convert to fraction form
    268,921.66/402,938.40 = 156,285.58/x
  3. Step 3: Cross multiply
    268,921.66x = 402,938.40 × 156,285.58
  4. Step 4: Simplify right side
    268,921.66x = 62,973,461,548.27
  5. Step 5: Solve for x
    x = 62,973,461,548.27/268,921.66
  6. Step 6: Final answer
    x = 234,170.28

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1.5x scale

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.