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Finding the Fourth Proportional to 225,215.84, 310,795.17 and 123,240.20

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Solution

The fourth proportional to 225,215.84, 310,795.17 and 123,240.20 is: 170,070.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,215.84 : 310,795.17 = 123,240.20 : x
  2. Step 2: Convert to fraction form
    225,215.84/310,795.17 = 123,240.20/x
  3. Step 3: Cross multiply
    225,215.84x = 310,795.17 × 123,240.20
  4. Step 4: Simplify right side
    225,215.84x = 38,302,458,909.83
  5. Step 5: Solve for x
    x = 38,302,458,909.83/225,215.84
  6. Step 6: Final answer
    x = 170,070.00

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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.