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Finding the Fourth Proportional to 187,281.82, 258,448.91 and 102,398.88

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Solution

The fourth proportional to 187,281.82, 258,448.91 and 102,398.88 is: 141,310.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,281.82 : 258,448.91 = 102,398.88 : x
  2. Step 2: Convert to fraction form
    187,281.82/258,448.91 = 102,398.88/x
  3. Step 3: Cross multiply
    187,281.82x = 258,448.91 × 102,398.88
  4. Step 4: Simplify right side
    187,281.82x = 26,464,879,378.41
  5. Step 5: Solve for x
    x = 26,464,879,378.41/187,281.82
  6. Step 6: Final answer
    x = 141,310.46

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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.