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Finding the Fourth Proportional to 353,452.45, 487,769.40 and 192,307.63

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Solution

The fourth proportional to 353,452.45, 487,769.40 and 192,307.63 is: 265,387.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,452.45 : 487,769.40 = 192,307.63 : x
  2. Step 2: Convert to fraction form
    353,452.45/487,769.40 = 192,307.63/x
  3. Step 3: Cross multiply
    353,452.45x = 487,769.40 × 192,307.63
  4. Step 4: Simplify right side
    353,452.45x = 93,801,777,300.52
  5. Step 5: Solve for x
    x = 93,801,777,300.52/353,452.45
  6. Step 6: Final answer
    x = 265,387.26

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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.