Home / 290,217.12-400,538.80-162,899.68

Finding the Fourth Proportional to 290,217.12, 400,538.80 and 162,899.68

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Solution

The fourth proportional to 290,217.12, 400,538.80 and 162,899.68 is: 224,823.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,217.12 : 400,538.80 = 162,899.68 : x
  2. Step 2: Convert to fraction form
    290,217.12/400,538.80 = 162,899.68/x
  3. Step 3: Cross multiply
    290,217.12x = 400,538.80 × 162,899.68
  4. Step 4: Simplify right side
    290,217.12x = 65,247,642,347.58
  5. Step 5: Solve for x
    x = 65,247,642,347.58/290,217.12
  6. Step 6: Final answer
    x = 224,823.55

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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.