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Finding the Fourth Proportional to 247,878.89, 341,946.95 and 161,888.20

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Solution

The fourth proportional to 247,878.89, 341,946.95 and 161,888.20 is: 223,323.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,878.89 : 341,946.95 = 161,888.20 : x
  2. Step 2: Convert to fraction form
    247,878.89/341,946.95 = 161,888.20/x
  3. Step 3: Cross multiply
    247,878.89x = 341,946.95 × 161,888.20
  4. Step 4: Simplify right side
    247,878.89x = 55,357,174,566.68
  5. Step 5: Solve for x
    x = 55,357,174,566.68/247,878.89
  6. Step 6: Final answer
    x = 223,323.48

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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.