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Finding the Fourth Proportional to 425,328.42, 637,390.80 and 235,872.12

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Solution

The fourth proportional to 425,328.42, 637,390.80 and 235,872.12 is: 353,474.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,328.42 : 637,390.80 = 235,872.12 : x
  2. Step 2: Convert to fraction form
    425,328.42/637,390.80 = 235,872.12/x
  3. Step 3: Cross multiply
    425,328.42x = 637,390.80 × 235,872.12
  4. Step 4: Simplify right side
    425,328.42x = 150,342,719,264.50
  5. Step 5: Solve for x
    x = 150,342,719,264.50/425,328.42
  6. Step 6: Final answer
    x = 353,474.43

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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.