Home / 287,824.76-397,199.88-160,508.40

Finding the Fourth Proportional to 287,824.76, 397,199.88 and 160,508.40

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Solution

The fourth proportional to 287,824.76, 397,199.88 and 160,508.40 is: 221,502.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,824.76 : 397,199.88 = 160,508.40 : x
  2. Step 2: Convert to fraction form
    287,824.76/397,199.88 = 160,508.40/x
  3. Step 3: Cross multiply
    287,824.76x = 397,199.88 × 160,508.40
  4. Step 4: Simplify right side
    287,824.76x = 63,753,917,218.99
  5. Step 5: Solve for x
    x = 63,753,917,218.99/287,824.76
  6. Step 6: Final answer
    x = 221,502.55

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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.