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Finding the Fourth Proportional to 308,396.42, 425,458.14 and 240,295.16

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Solution

The fourth proportional to 308,396.42, 425,458.14 and 240,295.16 is: 331,506.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,396.42 : 425,458.14 = 240,295.16 : x
  2. Step 2: Convert to fraction form
    308,396.42/425,458.14 = 240,295.16/x
  3. Step 3: Cross multiply
    308,396.42x = 425,458.14 × 240,295.16
  4. Step 4: Simplify right side
    308,396.42x = 102,235,532,888.25
  5. Step 5: Solve for x
    x = 102,235,532,888.25/308,396.42
  6. Step 6: Final answer
    x = 331,506.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.