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Finding the Fourth Proportional to 220,417.84, 330,657.92 and 70,623.12

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Solution

The fourth proportional to 220,417.84, 330,657.92 and 70,623.12 is: 105,944.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,417.84 : 330,657.92 = 70,623.12 : x
  2. Step 2: Convert to fraction form
    220,417.84/330,657.92 = 70,623.12/x
  3. Step 3: Cross multiply
    220,417.84x = 330,657.92 × 70,623.12
  4. Step 4: Simplify right side
    220,417.84x = 23,352,093,963.11
  5. Step 5: Solve for x
    x = 23,352,093,963.11/220,417.84
  6. Step 6: Final answer
    x = 105,944.66

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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.