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Finding the Fourth Proportional to 212,873.50, 293,750.42 and 117,378.15

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Solution

The fourth proportional to 212,873.50, 293,750.42 and 117,378.15 is: 161,973.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,873.50 : 293,750.42 = 117,378.15 : x
  2. Step 2: Convert to fraction form
    212,873.50/293,750.42 = 117,378.15/x
  3. Step 3: Cross multiply
    212,873.50x = 293,750.42 × 117,378.15
  4. Step 4: Simplify right side
    212,873.50x = 34,479,879,172.87
  5. Step 5: Solve for x
    x = 34,479,879,172.87/212,873.50
  6. Step 6: Final answer
    x = 161,973.56

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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.