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Finding the Fourth Proportional to 220,473.65, 304,403.90 and 147,985.26

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Solution

The fourth proportional to 220,473.65, 304,403.90 and 147,985.26 is: 204,320.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,473.65 : 304,403.90 = 147,985.26 : x
  2. Step 2: Convert to fraction form
    220,473.65/304,403.90 = 147,985.26/x
  3. Step 3: Cross multiply
    220,473.65x = 304,403.90 × 147,985.26
  4. Step 4: Simplify right side
    220,473.65x = 45,047,290,286.51
  5. Step 5: Solve for x
    x = 45,047,290,286.51/220,473.65
  6. Step 6: Final answer
    x = 204,320.52

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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.