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Finding the Fourth Proportional to 283,888.32, 425,875.12 and 91,698.57

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Solution

The fourth proportional to 283,888.32, 425,875.12 and 91,698.57 is: 137,561.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,888.32 : 425,875.12 = 91,698.57 : x
  2. Step 2: Convert to fraction form
    283,888.32/425,875.12 = 91,698.57/x
  3. Step 3: Cross multiply
    283,888.32x = 425,875.12 × 91,698.57
  4. Step 4: Simplify right side
    283,888.32x = 39,052,137,373.20
  5. Step 5: Solve for x
    x = 39,052,137,373.20/283,888.32
  6. Step 6: Final answer
    x = 137,561.62

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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.