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Finding the Fourth Proportional to 145,221.97, 217,846.40 and 56,482.21

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Solution

The fourth proportional to 145,221.97, 217,846.40 and 56,482.21 is: 84,728.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,221.97 : 217,846.40 = 56,482.21 : x
  2. Step 2: Convert to fraction form
    145,221.97/217,846.40 = 56,482.21/x
  3. Step 3: Cross multiply
    145,221.97x = 217,846.40 × 56,482.21
  4. Step 4: Simplify right side
    145,221.97x = 12,304,446,112.54
  5. Step 5: Solve for x
    x = 12,304,446,112.54/145,221.97
  6. Step 6: Final answer
    x = 84,728.54

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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.