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Finding the Fourth Proportional to 400,082.68, 600,124.74 and 163,425.40

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Solution

The fourth proportional to 400,082.68, 600,124.74 and 163,425.40 is: 245,138.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,082.68 : 600,124.74 = 163,425.40 : x
  2. Step 2: Convert to fraction form
    400,082.68/600,124.74 = 163,425.40/x
  3. Step 3: Cross multiply
    400,082.68x = 600,124.74 × 163,425.40
  4. Step 4: Simplify right side
    400,082.68x = 98,075,625,684.40
  5. Step 5: Solve for x
    x = 98,075,625,684.40/400,082.68
  6. Step 6: Final answer
    x = 245,138.39

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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.