Home / 270,925.12-406,388.65-91,005.40

Finding the Fourth Proportional to 270,925.12, 406,388.65 and 91,005.40

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Solution

The fourth proportional to 270,925.12, 406,388.65 and 91,005.40 is: 136,508.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,925.12 : 406,388.65 = 91,005.40 : x
  2. Step 2: Convert to fraction form
    270,925.12/406,388.65 = 91,005.40/x
  3. Step 3: Cross multiply
    270,925.12x = 406,388.65 × 91,005.40
  4. Step 4: Simplify right side
    270,925.12x = 36,983,561,648.71
  5. Step 5: Solve for x
    x = 36,983,561,648.71/270,925.12
  6. Step 6: Final answer
    x = 136,508.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.