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Finding the Fourth Proportional to 248,871.84, 373,169.28 and 147,711

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Solution

The fourth proportional to 248,871.84, 373,169.28 and 147,711 is: 221,484.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,871.84 : 373,169.28 = 147,711 : x
  2. Step 2: Convert to fraction form
    248,871.84/373,169.28 = 147,711/x
  3. Step 3: Cross multiply
    248,871.84x = 373,169.28 × 147,711
  4. Step 4: Simplify right side
    248,871.84x = 55,121,207,518.08
  5. Step 5: Solve for x
    x = 55,121,207,518.08/248,871.84
  6. Step 6: Final answer
    x = 221,484.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.