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Finding the Fourth Proportional to 220,740.69, 304,529.00 and 138,923.88

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Solution

The fourth proportional to 220,740.69, 304,529.00 and 138,923.88 is: 191,656.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,740.69 : 304,529.00 = 138,923.88 : x
  2. Step 2: Convert to fraction form
    220,740.69/304,529.00 = 138,923.88/x
  3. Step 3: Cross multiply
    220,740.69x = 304,529.00 × 138,923.88
  4. Step 4: Simplify right side
    220,740.69x = 42,306,352,352.91
  5. Step 5: Solve for x
    x = 42,306,352,352.91/220,740.69
  6. Step 6: Final answer
    x = 191,656.34

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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.