Home / 280,016.29-386,421.75-152,691.88

Finding the Fourth Proportional to 280,016.29, 386,421.75 and 152,691.88

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Solution

The fourth proportional to 280,016.29, 386,421.75 and 152,691.88 is: 210,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,016.29 : 386,421.75 = 152,691.88 : x
  2. Step 2: Convert to fraction form
    280,016.29/386,421.75 = 152,691.88/x
  3. Step 3: Cross multiply
    280,016.29x = 386,421.75 × 152,691.88
  4. Step 4: Simplify right side
    280,016.29x = 59,003,463,480.39
  5. Step 5: Solve for x
    x = 59,003,463,480.39/280,016.29
  6. Step 6: Final answer
    x = 210,714.40

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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.