Home / 236,904.28-326,918.06-129,478.02

Finding the Fourth Proportional to 236,904.28, 326,918.06 and 129,478.02

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Solution

The fourth proportional to 236,904.28, 326,918.06 and 129,478.02 is: 178,674.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,904.28 : 326,918.06 = 129,478.02 : x
  2. Step 2: Convert to fraction form
    236,904.28/326,918.06 = 129,478.02/x
  3. Step 3: Cross multiply
    236,904.28x = 326,918.06 × 129,478.02
  4. Step 4: Simplify right side
    236,904.28x = 42,328,703,111.04
  5. Step 5: Solve for x
    x = 42,328,703,111.04/236,904.28
  6. Step 6: Final answer
    x = 178,674.29

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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.