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Finding the Fourth Proportional to 243,035.30, 364,115.55 and 208,043.30

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Solution

The fourth proportional to 243,035.30, 364,115.55 and 208,043.30 is: 311,690.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,035.30 : 364,115.55 = 208,043.30 : x
  2. Step 2: Convert to fraction form
    243,035.30/364,115.55 = 208,043.30/x
  3. Step 3: Cross multiply
    243,035.30x = 364,115.55 × 208,043.30
  4. Step 4: Simplify right side
    243,035.30x = 75,751,800,603.32
  5. Step 5: Solve for x
    x = 75,751,800,603.32/243,035.30
  6. Step 6: Final answer
    x = 311,690.53

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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.