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Finding the Fourth Proportional to 223,616.32, 308,888.12 and 220,363.18

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Solution

The fourth proportional to 223,616.32, 308,888.12 and 220,363.18 is: 304,394.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,616.32 : 308,888.12 = 220,363.18 : x
  2. Step 2: Convert to fraction form
    223,616.32/308,888.12 = 220,363.18/x
  3. Step 3: Cross multiply
    223,616.32x = 308,888.12 × 220,363.18
  4. Step 4: Simplify right side
    223,616.32x = 68,067,565,741.17
  5. Step 5: Solve for x
    x = 68,067,565,741.17/223,616.32
  6. Step 6: Final answer
    x = 304,394.45

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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.