Home / 236,685.29-326,628.30-129,258.48

Finding the Fourth Proportional to 236,685.29, 326,628.30 and 129,258.48

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Solution

The fourth proportional to 236,685.29, 326,628.30 and 129,258.48 is: 178,378.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,685.29 : 326,628.30 = 129,258.48 : x
  2. Step 2: Convert to fraction form
    236,685.29/326,628.30 = 129,258.48/x
  3. Step 3: Cross multiply
    236,685.29x = 326,628.30 × 129,258.48
  4. Step 4: Simplify right side
    236,685.29x = 42,219,478,565.48
  5. Step 5: Solve for x
    x = 42,219,478,565.48/236,685.29
  6. Step 6: Final answer
    x = 178,378.13

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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.