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Finding the Fourth Proportional to 438,688.10, 605,391.52 and 237,484.10

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Solution

The fourth proportional to 438,688.10, 605,391.52 and 237,484.10 is: 327,729.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,688.10 : 605,391.52 = 237,484.10 : x
  2. Step 2: Convert to fraction form
    438,688.10/605,391.52 = 237,484.10/x
  3. Step 3: Cross multiply
    438,688.10x = 605,391.52 × 237,484.10
  4. Step 4: Simplify right side
    438,688.10x = 143,770,860,274.83
  5. Step 5: Solve for x
    x = 143,770,860,274.83/438,688.10
  6. Step 6: Final answer
    x = 327,729.11

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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.