Home / 225,210.11-310,902.47-129,698.36

Finding the Fourth Proportional to 225,210.11, 310,902.47 and 129,698.36

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Solution

The fourth proportional to 225,210.11, 310,902.47 and 129,698.36 is: 179,048.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,210.11 : 310,902.47 = 129,698.36 : x
  2. Step 2: Convert to fraction form
    225,210.11/310,902.47 = 129,698.36/x
  3. Step 3: Cross multiply
    225,210.11x = 310,902.47 × 129,698.36
  4. Step 4: Simplify right side
    225,210.11x = 40,323,540,478.95
  5. Step 5: Solve for x
    x = 40,323,540,478.95/225,210.11
  6. Step 6: Final answer
    x = 179,048.54

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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.