Home / 457,534.12-686,391.92-141,977.56

Finding the Fourth Proportional to 457,534.12, 686,391.92 and 141,977.56

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Solution

The fourth proportional to 457,534.12, 686,391.92 and 141,977.56 is: 212,994.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,534.12 : 686,391.92 = 141,977.56 : x
  2. Step 2: Convert to fraction form
    457,534.12/686,391.92 = 141,977.56/x
  3. Step 3: Cross multiply
    457,534.12x = 686,391.92 × 141,977.56
  4. Step 4: Simplify right side
    457,534.12x = 97,452,250,005.32
  5. Step 5: Solve for x
    x = 97,452,250,005.32/457,534.12
  6. Step 6: Final answer
    x = 212,994.50

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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.