Home / 236,904.28-326,918.04-129,478.04

Finding the Fourth Proportional to 236,904.28, 326,918.04 and 129,478.04

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Solution

The fourth proportional to 236,904.28, 326,918.04 and 129,478.04 is: 178,674.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,904.28 : 326,918.04 = 129,478.04 : x
  2. Step 2: Convert to fraction form
    236,904.28/326,918.04 = 129,478.04/x
  3. Step 3: Cross multiply
    236,904.28x = 326,918.04 × 129,478.04
  4. Step 4: Simplify right side
    236,904.28x = 42,328,707,059.84
  5. Step 5: Solve for x
    x = 42,328,707,059.84/236,904.28
  6. Step 6: Final answer
    x = 178,674.30

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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.