Home / 290,327.45-400,641.55-163,008.41

Finding the Fourth Proportional to 290,327.45, 400,641.55 and 163,008.41

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Solution

The fourth proportional to 290,327.45, 400,641.55 and 163,008.41 is: 224,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,327.45 : 400,641.55 = 163,008.41 : x
  2. Step 2: Convert to fraction form
    290,327.45/400,641.55 = 163,008.41/x
  3. Step 3: Cross multiply
    290,327.45x = 400,641.55 × 163,008.41
  4. Step 4: Simplify right side
    290,327.45x = 65,307,939,634.71
  5. Step 5: Solve for x
    x = 65,307,939,634.71/290,327.45
  6. Step 6: Final answer
    x = 224,945.80

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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.