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Finding the Fourth Proportional to 236,959.65, 326,998.49 and 129,530.16

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Solution

The fourth proportional to 236,959.65, 326,998.49 and 129,530.16 is: 178,748.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,959.65 : 326,998.49 = 129,530.16 : x
  2. Step 2: Convert to fraction form
    236,959.65/326,998.49 = 129,530.16/x
  3. Step 3: Cross multiply
    236,959.65x = 326,998.49 × 129,530.16
  4. Step 4: Simplify right side
    236,959.65x = 42,356,166,081.81
  5. Step 5: Solve for x
    x = 42,356,166,081.81/236,959.65
  6. Step 6: Final answer
    x = 178,748.43

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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.