Home / 287,349.11-396,513.38-160,036.55

Finding the Fourth Proportional to 287,349.11, 396,513.38 and 160,036.55

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Solution

The fourth proportional to 287,349.11, 396,513.38 and 160,036.55 is: 220,834.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,349.11 : 396,513.38 = 160,036.55 : x
  2. Step 2: Convert to fraction form
    287,349.11/396,513.38 = 160,036.55/x
  3. Step 3: Cross multiply
    287,349.11x = 396,513.38 × 160,036.55
  4. Step 4: Simplify right side
    287,349.11x = 63,456,630,581.29
  5. Step 5: Solve for x
    x = 63,456,630,581.29/287,349.11
  6. Step 6: Final answer
    x = 220,834.62

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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.