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Finding the Fourth Proportional to 243,037.70, 364,556.55 and 207,608.30

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Solution

The fourth proportional to 243,037.70, 364,556.55 and 207,608.30 is: 311,412.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,037.70 : 364,556.55 = 207,608.30 : x
  2. Step 2: Convert to fraction form
    243,037.70/364,556.55 = 207,608.30/x
  3. Step 3: Cross multiply
    243,037.70x = 364,556.55 × 207,608.30
  4. Step 4: Simplify right side
    243,037.70x = 75,684,965,599.37
  5. Step 5: Solve for x
    x = 75,684,965,599.37/243,037.70
  6. Step 6: Final answer
    x = 311,412.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.