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Finding the Fourth Proportional to 438,627.57, 605,307.96 and 237,423.57

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Solution

The fourth proportional to 438,627.57, 605,307.96 and 237,423.57 is: 327,645.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,627.57 : 605,307.96 = 237,423.57 : x
  2. Step 2: Convert to fraction form
    438,627.57/605,307.96 = 237,423.57/x
  3. Step 3: Cross multiply
    438,627.57x = 605,307.96 × 237,423.57
  4. Step 4: Simplify right side
    438,627.57x = 143,714,376,812.62
  5. Step 5: Solve for x
    x = 143,714,376,812.62/438,627.57
  6. Step 6: Final answer
    x = 327,645.56

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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.