Home / 457,334.40-686,001.60-141,823.20

Finding the Fourth Proportional to 457,334.40, 686,001.60 and 141,823.20

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Solution

The fourth proportional to 457,334.40, 686,001.60 and 141,823.20 is: 212,734.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,334.40 : 686,001.60 = 141,823.20 : x
  2. Step 2: Convert to fraction form
    457,334.40/686,001.60 = 141,823.20/x
  3. Step 3: Cross multiply
    457,334.40x = 686,001.60 × 141,823.20
  4. Step 4: Simplify right side
    457,334.40x = 97,290,942,117.12
  5. Step 5: Solve for x
    x = 97,290,942,117.12/457,334.40
  6. Step 6: Final answer
    x = 212,734.80

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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.