Home / 280,192.84-386,689.02-159,371.92

Finding the Fourth Proportional to 280,192.84, 386,689.02 and 159,371.92

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Solution

The fourth proportional to 280,192.84, 386,689.02 and 159,371.92 is: 219,946.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,192.84 : 386,689.02 = 159,371.92 : x
  2. Step 2: Convert to fraction form
    280,192.84/386,689.02 = 159,371.92/x
  3. Step 3: Cross multiply
    280,192.84x = 386,689.02 × 159,371.92
  4. Step 4: Simplify right side
    280,192.84x = 61,627,371,560.32
  5. Step 5: Solve for x
    x = 61,627,371,560.32/280,192.84
  6. Step 6: Final answer
    x = 219,946.28

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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.