Home / 280,024.13-386,418.08-159,148.64

Finding the Fourth Proportional to 280,024.13, 386,418.08 and 159,148.64

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Solution

The fourth proportional to 280,024.13, 386,418.08 and 159,148.64 is: 219,616.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,024.13 : 386,418.08 = 159,148.64 : x
  2. Step 2: Convert to fraction form
    280,024.13/386,418.08 = 159,148.64/x
  3. Step 3: Cross multiply
    280,024.13x = 386,418.08 × 159,148.64
  4. Step 4: Simplify right side
    280,024.13x = 61,497,909,175.58
  5. Step 5: Solve for x
    x = 61,497,909,175.58/280,024.13
  6. Step 6: Final answer
    x = 219,616.47

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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.