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Finding the Fourth Proportional to 220,477.32, 304,249.88 and 129,837.11

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Solution

The fourth proportional to 220,477.32, 304,249.88 and 129,837.11 is: 179,170.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,477.32 : 304,249.88 = 129,837.11 : x
  2. Step 2: Convert to fraction form
    220,477.32/304,249.88 = 129,837.11/x
  3. Step 3: Cross multiply
    220,477.32x = 304,249.88 × 129,837.11
  4. Step 4: Simplify right side
    220,477.32x = 39,502,922,966.61
  5. Step 5: Solve for x
    x = 39,502,922,966.61/220,477.32
  6. Step 6: Final answer
    x = 179,170.01

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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.