Home / 280,360.58-386,884.08-159,490.49

Finding the Fourth Proportional to 280,360.58, 386,884.08 and 159,490.49

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Solution

The fourth proportional to 280,360.58, 386,884.08 and 159,490.49 is: 220,089.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,360.58 : 386,884.08 = 159,490.49 : x
  2. Step 2: Convert to fraction form
    280,360.58/386,884.08 = 159,490.49/x
  3. Step 3: Cross multiply
    280,360.58x = 386,884.08 × 159,490.49
  4. Step 4: Simplify right side
    280,360.58x = 61,704,329,557.98
  5. Step 5: Solve for x
    x = 61,704,329,557.98/280,360.58
  6. Step 6: Final answer
    x = 220,089.18

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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.