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Finding the Fourth Proportional to 343,290.12, 473,768.42 and 190,376.20

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Solution

The fourth proportional to 343,290.12, 473,768.42 and 190,376.20 is: 262,734.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,290.12 : 473,768.42 = 190,376.20 : x
  2. Step 2: Convert to fraction form
    343,290.12/473,768.42 = 190,376.20/x
  3. Step 3: Cross multiply
    343,290.12x = 473,768.42 × 190,376.20
  4. Step 4: Simplify right side
    343,290.12x = 90,194,231,479.60
  5. Step 5: Solve for x
    x = 90,194,231,479.60/343,290.12
  6. Step 6: Final answer
    x = 262,734.71

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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.