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Finding the Fourth Proportional to 187,888.32, 259,288 and 107,326.48

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Solution

The fourth proportional to 187,888.32, 259,288 and 107,326.48 is: 148,111.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,888.32 : 259,288 = 107,326.48 : x
  2. Step 2: Convert to fraction form
    187,888.32/259,288 = 107,326.48/x
  3. Step 3: Cross multiply
    187,888.32x = 259,288 × 107,326.48
  4. Step 4: Simplify right side
    187,888.32x = 27,828,468,346.24
  5. Step 5: Solve for x
    x = 27,828,468,346.24/187,888.32
  6. Step 6: Final answer
    x = 148,111.75

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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.