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Finding the Fourth Proportional to 287,402.76, 396,615.92 and 166,614.07

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Solution

The fourth proportional to 287,402.76, 396,615.92 and 166,614.07 is: 229,927.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,402.76 : 396,615.92 = 166,614.07 : x
  2. Step 2: Convert to fraction form
    287,402.76/396,615.92 = 166,614.07/x
  3. Step 3: Cross multiply
    287,402.76x = 396,615.92 × 166,614.07
  4. Step 4: Simplify right side
    287,402.76x = 66,081,792,826.64
  5. Step 5: Solve for x
    x = 66,081,792,826.64/287,402.76
  6. Step 6: Final answer
    x = 229,927.48

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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.