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Finding the Fourth Proportional to 251,671.43, 377,507.04 and 91,759.34

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Solution

The fourth proportional to 251,671.43, 377,507.04 and 91,759.34 is: 137,638.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,671.43 : 377,507.04 = 91,759.34 : x
  2. Step 2: Convert to fraction form
    251,671.43/377,507.04 = 91,759.34/x
  3. Step 3: Cross multiply
    251,671.43x = 377,507.04 × 91,759.34
  4. Step 4: Simplify right side
    251,671.43x = 34,639,795,547.89
  5. Step 5: Solve for x
    x = 34,639,795,547.89/251,671.43
  6. Step 6: Final answer
    x = 137,638.97

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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.