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Finding the Fourth Proportional to 221,748, 305,652.87 and 173,265.18

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Solution

The fourth proportional to 221,748, 305,652.87 and 173,265.18 is: 238,825.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,748 : 305,652.87 = 173,265.18 : x
  2. Step 2: Convert to fraction form
    221,748/305,652.87 = 173,265.18/x
  3. Step 3: Cross multiply
    221,748x = 305,652.87 × 173,265.18
  4. Step 4: Simplify right side
    221,748x = 52,958,999,538.07
  5. Step 5: Solve for x
    x = 52,958,999,538.07/221,748
  6. Step 6: Final answer
    x = 238,825.15

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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.