Home / 280,534.12-387,137.52-159,675.41

Finding the Fourth Proportional to 280,534.12, 387,137.52 and 159,675.41

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Solution

The fourth proportional to 280,534.12, 387,137.52 and 159,675.41 is: 220,352.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,534.12 : 387,137.52 = 159,675.41 : x
  2. Step 2: Convert to fraction form
    280,534.12/387,137.52 = 159,675.41/x
  3. Step 3: Cross multiply
    280,534.12x = 387,137.52 × 159,675.41
  4. Step 4: Simplify right side
    280,534.12x = 61,816,342,560.49
  5. Step 5: Solve for x
    x = 61,816,342,560.49/280,534.12
  6. Step 6: Final answer
    x = 220,352.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.