Home / 287,053.32-396,123.80-159,726.18

Finding the Fourth Proportional to 287,053.32, 396,123.80 and 159,726.18

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Solution

The fourth proportional to 287,053.32, 396,123.80 and 159,726.18 is: 220,416.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,053.32 : 396,123.80 = 159,726.18 : x
  2. Step 2: Convert to fraction form
    287,053.32/396,123.80 = 159,726.18/x
  3. Step 3: Cross multiply
    287,053.32x = 396,123.80 × 159,726.18
  4. Step 4: Simplify right side
    287,053.32x = 63,271,341,381.08
  5. Step 5: Solve for x
    x = 63,271,341,381.08/287,053.32
  6. Step 6: Final answer
    x = 220,416.69

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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.