Home / 287,538.72-396,690.96-180,062.88

Finding the Fourth Proportional to 287,538.72, 396,690.96 and 180,062.88

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Solution

The fourth proportional to 287,538.72, 396,690.96 and 180,062.88 is: 248,416.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,538.72 : 396,690.96 = 180,062.88 : x
  2. Step 2: Convert to fraction form
    287,538.72/396,690.96 = 180,062.88/x
  3. Step 3: Cross multiply
    287,538.72x = 396,690.96 × 180,062.88
  4. Step 4: Simplify right side
    287,538.72x = 71,429,316,727.56
  5. Step 5: Solve for x
    x = 71,429,316,727.56/287,538.72
  6. Step 6: Final answer
    x = 248,416.34

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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.