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Finding the Fourth Proportional to 210,677.46, 290,734.90 and 115,184.16

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Solution

The fourth proportional to 210,677.46, 290,734.90 and 115,184.16 is: 158,954.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,677.46 : 290,734.90 = 115,184.16 : x
  2. Step 2: Convert to fraction form
    210,677.46/290,734.90 = 115,184.16/x
  3. Step 3: Cross multiply
    210,677.46x = 290,734.90 × 115,184.16
  4. Step 4: Simplify right side
    210,677.46x = 33,488,055,239.18
  5. Step 5: Solve for x
    x = 33,488,055,239.18/210,677.46
  6. Step 6: Final answer
    x = 158,954.14

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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.