Home / 290,041.21-400,255.18-162,716.50

Finding the Fourth Proportional to 290,041.21, 400,255.18 and 162,716.50

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Solution

The fourth proportional to 290,041.21, 400,255.18 and 162,716.50 is: 224,547.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,041.21 : 400,255.18 = 162,716.50 : x
  2. Step 2: Convert to fraction form
    290,041.21/400,255.18 = 162,716.50/x
  3. Step 3: Cross multiply
    290,041.21x = 400,255.18 × 162,716.50
  4. Step 4: Simplify right side
    290,041.21x = 65,128,121,996.47
  5. Step 5: Solve for x
    x = 65,128,121,996.47/290,041.21
  6. Step 6: Final answer
    x = 224,547.82

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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.