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Finding the Fourth Proportional to 342,148.88, 472,198.12 and 198,896.40

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Solution

The fourth proportional to 342,148.88, 472,198.12 and 198,896.40 is: 274,496.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,148.88 : 472,198.12 = 198,896.40 : x
  2. Step 2: Convert to fraction form
    342,148.88/472,198.12 = 198,896.40/x
  3. Step 3: Cross multiply
    342,148.88x = 472,198.12 × 198,896.40
  4. Step 4: Simplify right side
    342,148.88x = 93,918,506,154.77
  5. Step 5: Solve for x
    x = 93,918,506,154.77/342,148.88
  6. Step 6: Final answer
    x = 274,496.02

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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.