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Finding the Fourth Proportional to 314,879.20, 472,318.80 and 181,690.90

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Solution

The fourth proportional to 314,879.20, 472,318.80 and 181,690.90 is: 272,536.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,879.20 : 472,318.80 = 181,690.90 : x
  2. Step 2: Convert to fraction form
    314,879.20/472,318.80 = 181,690.90/x
  3. Step 3: Cross multiply
    314,879.20x = 472,318.80 × 181,690.90
  4. Step 4: Simplify right side
    314,879.20x = 85,816,027,858.92
  5. Step 5: Solve for x
    x = 85,816,027,858.92/314,879.20
  6. Step 6: Final answer
    x = 272,536.35

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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.