Home / 280,314.75-386,845.02-159,467.07

Finding the Fourth Proportional to 280,314.75, 386,845.02 and 159,467.07

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Solution

The fourth proportional to 280,314.75, 386,845.02 and 159,467.07 is: 220,070.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,314.75 : 386,845.02 = 159,467.07 : x
  2. Step 2: Convert to fraction form
    280,314.75/386,845.02 = 159,467.07/x
  3. Step 3: Cross multiply
    280,314.75x = 386,845.02 × 159,467.07
  4. Step 4: Simplify right side
    280,314.75x = 61,689,041,883.49
  5. Step 5: Solve for x
    x = 61,689,041,883.49/280,314.75
  6. Step 6: Final answer
    x = 220,070.62

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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.