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Finding the Fourth Proportional to 292,778.40, 437,855.40 and 245,539.20

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Solution

The fourth proportional to 292,778.40, 437,855.40 and 245,539.20 is: 367,208.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,778.40 : 437,855.40 = 245,539.20 : x
  2. Step 2: Convert to fraction form
    292,778.40/437,855.40 = 245,539.20/x
  3. Step 3: Cross multiply
    292,778.40x = 437,855.40 × 245,539.20
  4. Step 4: Simplify right side
    292,778.40x = 107,510,664,631.68
  5. Step 5: Solve for x
    x = 107,510,664,631.68/292,778.40
  6. Step 6: Final answer
    x = 367,208.32

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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.