Home / 290,470.27-400,886.56-163,145.86

Finding the Fourth Proportional to 290,470.27, 400,886.56 and 163,145.86

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Solution

The fourth proportional to 290,470.27, 400,886.56 and 163,145.86 is: 225,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,470.27 : 400,886.56 = 163,145.86 : x
  2. Step 2: Convert to fraction form
    290,470.27/400,886.56 = 163,145.86/x
  3. Step 3: Cross multiply
    290,470.27x = 400,886.56 × 163,145.86
  4. Step 4: Simplify right side
    290,470.27x = 65,402,982,593.64
  5. Step 5: Solve for x
    x = 65,402,982,593.64/290,470.27
  6. Step 6: Final answer
    x = 225,162.40

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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.