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Finding the Fourth Proportional to 305,864.52, 458,279.10 and 187,288.26

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Solution

The fourth proportional to 305,864.52, 458,279.10 and 187,288.26 is: 280,615.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,864.52 : 458,279.10 = 187,288.26 : x
  2. Step 2: Convert to fraction form
    305,864.52/458,279.10 = 187,288.26/x
  3. Step 3: Cross multiply
    305,864.52x = 458,279.10 × 187,288.26
  4. Step 4: Simplify right side
    305,864.52x = 85,830,295,233.37
  5. Step 5: Solve for x
    x = 85,830,295,233.37/305,864.52
  6. Step 6: Final answer
    x = 280,615.40

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1.5x scale

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.