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Finding the Fourth Proportional to 225,259.80, 310,859.10 and 124,661.40

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Solution

The fourth proportional to 225,259.80, 310,859.10 and 124,661.40 is: 172,033.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,259.80 : 310,859.10 = 124,661.40 : x
  2. Step 2: Convert to fraction form
    225,259.80/310,859.10 = 124,661.40/x
  3. Step 3: Cross multiply
    225,259.80x = 310,859.10 × 124,661.40
  4. Step 4: Simplify right side
    225,259.80x = 38,752,130,608.74
  5. Step 5: Solve for x
    x = 38,752,130,608.74/225,259.80
  6. Step 6: Final answer
    x = 172,033.05

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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.