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Finding the Fourth Proportional to 220,308.42, 304,013.70 and 124,813.02

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Solution

The fourth proportional to 220,308.42, 304,013.70 and 124,813.02 is: 172,235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,308.42 : 304,013.70 = 124,813.02 : x
  2. Step 2: Convert to fraction form
    220,308.42/304,013.70 = 124,813.02/x
  3. Step 3: Cross multiply
    220,308.42x = 304,013.70 × 124,813.02
  4. Step 4: Simplify right side
    220,308.42x = 37,944,868,018.37
  5. Step 5: Solve for x
    x = 37,944,868,018.37/220,308.42
  6. Step 6: Final answer
    x = 172,235.21

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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.