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Finding the Fourth Proportional to 220,383.12, 304,122.32 and 124,898.64

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Solution

The fourth proportional to 220,383.12, 304,122.32 and 124,898.64 is: 172,356.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,383.12 : 304,122.32 = 124,898.64 : x
  2. Step 2: Convert to fraction form
    220,383.12/304,122.32 = 124,898.64/x
  3. Step 3: Cross multiply
    220,383.12x = 304,122.32 × 124,898.64
  4. Step 4: Simplify right side
    220,383.12x = 37,984,464,161.64
  5. Step 5: Solve for x
    x = 37,984,464,161.64/220,383.12
  6. Step 6: Final answer
    x = 172,356.50

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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.