Home / 280,159.32-386,604.18-159,283.56

Finding the Fourth Proportional to 280,159.32, 386,604.18 and 159,283.56

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Solution

The fourth proportional to 280,159.32, 386,604.18 and 159,283.56 is: 219,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,159.32 : 386,604.18 = 159,283.56 : x
  2. Step 2: Convert to fraction form
    280,159.32/386,604.18 = 159,283.56/x
  3. Step 3: Cross multiply
    280,159.32x = 386,604.18 × 159,283.56
  4. Step 4: Simplify right side
    280,159.32x = 61,579,690,101.28
  5. Step 5: Solve for x
    x = 61,579,690,101.28/280,159.32
  6. Step 6: Final answer
    x = 219,802.40

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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.