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Finding the Fourth Proportional to 210,042.66, 289,876.14 and 119,427.18

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Solution

The fourth proportional to 210,042.66, 289,876.14 and 119,427.18 is: 164,819.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,042.66 : 289,876.14 = 119,427.18 : x
  2. Step 2: Convert to fraction form
    210,042.66/289,876.14 = 119,427.18/x
  3. Step 3: Cross multiply
    210,042.66x = 289,876.14 × 119,427.18
  4. Step 4: Simplify right side
    210,042.66x = 34,619,089,949.49
  5. Step 5: Solve for x
    x = 34,619,089,949.49/210,042.66
  6. Step 6: Final answer
    x = 164,819.33

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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.