Home / 461,258.40-691,822.80-145,747.20

Finding the Fourth Proportional to 461,258.40, 691,822.80 and 145,747.20

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Solution

The fourth proportional to 461,258.40, 691,822.80 and 145,747.20 is: 218,600.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,258.40 : 691,822.80 = 145,747.20 : x
  2. Step 2: Convert to fraction form
    461,258.40/691,822.80 = 145,747.20/x
  3. Step 3: Cross multiply
    461,258.40x = 691,822.80 × 145,747.20
  4. Step 4: Simplify right side
    461,258.40x = 100,831,235,996.16
  5. Step 5: Solve for x
    x = 100,831,235,996.16/461,258.40
  6. Step 6: Final answer
    x = 218,600.32

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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.