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Finding the Fourth Proportional to 225,210.85, 310,788.25 and 123,235.18

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Solution

The fourth proportional to 225,210.85, 310,788.25 and 123,235.18 is: 170,063.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,210.85 : 310,788.25 = 123,235.18 : x
  2. Step 2: Convert to fraction form
    225,210.85/310,788.25 = 123,235.18/x
  3. Step 3: Cross multiply
    225,210.85x = 310,788.25 × 123,235.18
  4. Step 4: Simplify right side
    225,210.85x = 38,300,045,930.64
  5. Step 5: Solve for x
    x = 38,300,045,930.64/225,210.85
  6. Step 6: Final answer
    x = 170,063.06

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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.