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Finding the Fourth Proportional to 317,641.08, 438,345.45 and 174,410.37

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Solution

The fourth proportional to 317,641.08, 438,345.45 and 174,410.37 is: 240,686.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,641.08 : 438,345.45 = 174,410.37 : x
  2. Step 2: Convert to fraction form
    317,641.08/438,345.45 = 174,410.37/x
  3. Step 3: Cross multiply
    317,641.08x = 438,345.45 × 174,410.37
  4. Step 4: Simplify right side
    317,641.08x = 76,451,992,122.32
  5. Step 5: Solve for x
    x = 76,451,992,122.32/317,641.08
  6. Step 6: Final answer
    x = 240,686.73

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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.