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Finding the Fourth Proportional to 218,800.94, 328,201.47 and 69,052.91

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Solution

The fourth proportional to 218,800.94, 328,201.47 and 69,052.91 is: 103,579.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,800.94 : 328,201.47 = 69,052.91 : x
  2. Step 2: Convert to fraction form
    218,800.94/328,201.47 = 69,052.91/x
  3. Step 3: Cross multiply
    218,800.94x = 328,201.47 × 69,052.91
  4. Step 4: Simplify right side
    218,800.94x = 22,663,264,928.77
  5. Step 5: Solve for x
    x = 22,663,264,928.77/218,800.94
  6. Step 6: Final answer
    x = 103,579.38

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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.