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Finding the Fourth Proportional to 290,959.67, 401,464.15 and 170,077.57

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Solution

The fourth proportional to 290,959.67, 401,464.15 and 170,077.57 is: 234,671.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,959.67 : 401,464.15 = 170,077.57 : x
  2. Step 2: Convert to fraction form
    290,959.67/401,464.15 = 170,077.57/x
  3. Step 3: Cross multiply
    290,959.67x = 401,464.15 × 170,077.57
  4. Step 4: Simplify right side
    290,959.67x = 68,280,044,216.41
  5. Step 5: Solve for x
    x = 68,280,044,216.41/290,959.67
  6. Step 6: Final answer
    x = 234,671.85

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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.