Home / 236,452.40-326,309-129,025.36

Finding the Fourth Proportional to 236,452.40, 326,309 and 129,025.36

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Solution

The fourth proportional to 236,452.40, 326,309 and 129,025.36 is: 178,057.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,452.40 : 326,309 = 129,025.36 : x
  2. Step 2: Convert to fraction form
    236,452.40/326,309 = 129,025.36/x
  3. Step 3: Cross multiply
    236,452.40x = 326,309 × 129,025.36
  4. Step 4: Simplify right side
    236,452.40x = 42,102,136,196.24
  5. Step 5: Solve for x
    x = 42,102,136,196.24/236,452.40
  6. Step 6: Final answer
    x = 178,057.55

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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.