Home / 287,151.50-396,269.08-159,824.36

Finding the Fourth Proportional to 287,151.50, 396,269.08 and 159,824.36

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Solution

The fourth proportional to 287,151.50, 396,269.08 and 159,824.36 is: 220,557.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,151.50 : 396,269.08 = 159,824.36 : x
  2. Step 2: Convert to fraction form
    287,151.50/396,269.08 = 159,824.36/x
  3. Step 3: Cross multiply
    287,151.50x = 396,269.08 × 159,824.36
  4. Step 4: Simplify right side
    287,151.50x = 63,333,452,098.79
  5. Step 5: Solve for x
    x = 63,333,452,098.79/287,151.50
  6. Step 6: Final answer
    x = 220,557.62

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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.