Home / 310,244.52-428,126.13-189,587.73

Finding the Fourth Proportional to 310,244.52, 428,126.13 and 189,587.73

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Solution

The fourth proportional to 310,244.52, 428,126.13 and 189,587.73 is: 261,624.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,244.52 : 428,126.13 = 189,587.73 : x
  2. Step 2: Convert to fraction form
    310,244.52/428,126.13 = 189,587.73/x
  3. Step 3: Cross multiply
    310,244.52x = 428,126.13 × 189,587.73
  4. Step 4: Simplify right side
    310,244.52x = 81,167,461,140.38
  5. Step 5: Solve for x
    x = 81,167,461,140.38/310,244.52
  6. Step 6: Final answer
    x = 261,624.16

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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.