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Finding the Fourth Proportional to 293,505.40, 440,455.40 and 103,965.12

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Solution

The fourth proportional to 293,505.40, 440,455.40 and 103,965.12 is: 156,017.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,505.40 : 440,455.40 = 103,965.12 : x
  2. Step 2: Convert to fraction form
    293,505.40/440,455.40 = 103,965.12/x
  3. Step 3: Cross multiply
    293,505.40x = 440,455.40 × 103,965.12
  4. Step 4: Simplify right side
    293,505.40x = 45,791,998,515.65
  5. Step 5: Solve for x
    x = 45,791,998,515.65/293,505.40
  6. Step 6: Final answer
    x = 156,017.57

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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.