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Finding the Fourth Proportional to 345,483.75, 476,782.38 and 192,522.15

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Solution

The fourth proportional to 345,483.75, 476,782.38 and 192,522.15 is: 265,688.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,483.75 : 476,782.38 = 192,522.15 : x
  2. Step 2: Convert to fraction form
    345,483.75/476,782.38 = 192,522.15/x
  3. Step 3: Cross multiply
    345,483.75x = 476,782.38 × 192,522.15
  4. Step 4: Simplify right side
    345,483.75x = 91,791,168,879.72
  5. Step 5: Solve for x
    x = 91,791,168,879.72/345,483.75
  6. Step 6: Final answer
    x = 265,688.82

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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.