Home / 314,879.20-472,464.60-165,288.40

Finding the Fourth Proportional to 314,879.20, 472,464.60 and 165,288.40

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Solution

The fourth proportional to 314,879.20, 472,464.60 and 165,288.40 is: 248,009.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,879.20 : 472,464.60 = 165,288.40 : x
  2. Step 2: Convert to fraction form
    314,879.20/472,464.60 = 165,288.40/x
  3. Step 3: Cross multiply
    314,879.20x = 472,464.60 × 165,288.40
  4. Step 4: Simplify right side
    314,879.20x = 78,092,917,790.64
  5. Step 5: Solve for x
    x = 78,092,917,790.64/314,879.20
  6. Step 6: Final answer
    x = 248,009.13

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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.