Home / 287,646.91-396,953.17-160,319.77

Finding the Fourth Proportional to 287,646.91, 396,953.17 and 160,319.77

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Solution

The fourth proportional to 287,646.91, 396,953.17 and 160,319.77 is: 221,241.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,646.91 : 396,953.17 = 160,319.77 : x
  2. Step 2: Convert to fraction form
    287,646.91/396,953.17 = 160,319.77/x
  3. Step 3: Cross multiply
    287,646.91x = 396,953.17 × 160,319.77
  4. Step 4: Simplify right side
    287,646.91x = 63,639,441,814.57
  5. Step 5: Solve for x
    x = 63,639,441,814.57/287,646.91
  6. Step 6: Final answer
    x = 221,241.53

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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.