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Finding the Fourth Proportional to 199,394.48, 275,154.65 and 118,820.20

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Solution

The fourth proportional to 199,394.48, 275,154.65 and 118,820.20 is: 163,966.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,394.48 : 275,154.65 = 118,820.20 : x
  2. Step 2: Convert to fraction form
    199,394.48/275,154.65 = 118,820.20/x
  3. Step 3: Cross multiply
    199,394.48x = 275,154.65 × 118,820.20
  4. Step 4: Simplify right side
    199,394.48x = 32,693,930,543.93
  5. Step 5: Solve for x
    x = 32,693,930,543.93/199,394.48
  6. Step 6: Final answer
    x = 163,966.08

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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.