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Finding the Fourth Proportional to 270,070.16, 372,690.60 and 149,205.20

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Solution

The fourth proportional to 270,070.16, 372,690.60 and 149,205.20 is: 205,899.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,070.16 : 372,690.60 = 149,205.20 : x
  2. Step 2: Convert to fraction form
    270,070.16/372,690.60 = 149,205.20/x
  3. Step 3: Cross multiply
    270,070.16x = 372,690.60 × 149,205.20
  4. Step 4: Simplify right side
    270,070.16x = 55,607,375,511.12
  5. Step 5: Solve for x
    x = 55,607,375,511.12/270,070.16
  6. Step 6: Final answer
    x = 205,899.74

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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.