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Finding the Fourth Proportional to 309,634.72, 464,442.36 and 88,018.72

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Solution

The fourth proportional to 309,634.72, 464,442.36 and 88,018.72 is: 132,025.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,634.72 : 464,442.36 = 88,018.72 : x
  2. Step 2: Convert to fraction form
    309,634.72/464,442.36 = 88,018.72/x
  3. Step 3: Cross multiply
    309,634.72x = 464,442.36 × 88,018.72
  4. Step 4: Simplify right side
    309,634.72x = 40,879,622,040.98
  5. Step 5: Solve for x
    x = 40,879,622,040.98/309,634.72
  6. Step 6: Final answer
    x = 132,025.32

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1.5x scale

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.