Home / 290,330.32-400,645.52-163,011.28

Finding the Fourth Proportional to 290,330.32, 400,645.52 and 163,011.28

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Solution

The fourth proportional to 290,330.32, 400,645.52 and 163,011.28 is: 224,949.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,330.32 : 400,645.52 = 163,011.28 : x
  2. Step 2: Convert to fraction form
    290,330.32/400,645.52 = 163,011.28/x
  3. Step 3: Cross multiply
    290,330.32x = 400,645.52 × 163,011.28
  4. Step 4: Simplify right side
    290,330.32x = 65,309,738,226.41
  5. Step 5: Solve for x
    x = 65,309,738,226.41/290,330.32
  6. Step 6: Final answer
    x = 224,949.77

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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.