Home / 236,728.29-326,685.03-129,298.57

Finding the Fourth Proportional to 236,728.29, 326,685.03 and 129,298.57

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Solution

The fourth proportional to 236,728.29, 326,685.03 and 129,298.57 is: 178,432.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,728.29 : 326,685.03 = 129,298.57 : x
  2. Step 2: Convert to fraction form
    236,728.29/326,685.03 = 129,298.57/x
  3. Step 3: Cross multiply
    236,728.29x = 326,685.03 × 129,298.57
  4. Step 4: Simplify right side
    236,728.29x = 42,239,907,219.41
  5. Step 5: Solve for x
    x = 42,239,907,219.41/236,728.29
  6. Step 6: Final answer
    x = 178,432.02

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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.