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Finding the Fourth Proportional to 287,968.88, 397,347.84 and 167,082.45

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Solution

The fourth proportional to 287,968.88, 397,347.84 and 167,082.45 is: 230,545.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,968.88 : 397,347.84 = 167,082.45 : x
  2. Step 2: Convert to fraction form
    287,968.88/397,347.84 = 167,082.45/x
  3. Step 3: Cross multiply
    287,968.88x = 397,347.84 × 167,082.45
  4. Step 4: Simplify right side
    287,968.88x = 66,389,850,609.41
  5. Step 5: Solve for x
    x = 66,389,850,609.41/287,968.88
  6. Step 6: Final answer
    x = 230,545.23

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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.