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Finding the Fourth Proportional to 192,038.80, 288,058.20 and 107,712.40

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Solution

The fourth proportional to 192,038.80, 288,058.20 and 107,712.40 is: 161,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,038.80 : 288,058.20 = 107,712.40 : x
  2. Step 2: Convert to fraction form
    192,038.80/288,058.20 = 107,712.40/x
  3. Step 3: Cross multiply
    192,038.80x = 288,058.20 × 107,712.40
  4. Step 4: Simplify right side
    192,038.80x = 31,027,440,061.68
  5. Step 5: Solve for x
    x = 31,027,440,061.68/192,038.80
  6. Step 6: Final answer
    x = 161,568.60

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1.5x scale

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.