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Finding the Fourth Proportional to 220,156.80, 330,235.20 and 102,058.80

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Solution

The fourth proportional to 220,156.80, 330,235.20 and 102,058.80 is: 153,088.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,156.80 : 330,235.20 = 102,058.80 : x
  2. Step 2: Convert to fraction form
    220,156.80/330,235.20 = 102,058.80/x
  3. Step 3: Cross multiply
    220,156.80x = 330,235.20 × 102,058.80
  4. Step 4: Simplify right side
    220,156.80x = 33,703,408,229.76
  5. Step 5: Solve for x
    x = 33,703,408,229.76/220,156.80
  6. Step 6: Final answer
    x = 153,088.20

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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.