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Finding the Fourth Proportional to 187,018.76, 280,943.34 and 115,993.89

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Solution

The fourth proportional to 187,018.76, 280,943.34 and 115,993.89 is: 174,248.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,018.76 : 280,943.34 = 115,993.89 : x
  2. Step 2: Convert to fraction form
    187,018.76/280,943.34 = 115,993.89/x
  3. Step 3: Cross multiply
    187,018.76x = 280,943.34 × 115,993.89
  4. Step 4: Simplify right side
    187,018.76x = 32,587,710,876.19
  5. Step 5: Solve for x
    x = 32,587,710,876.19/187,018.76
  6. Step 6: Final answer
    x = 174,248.36

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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.