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Finding the Fourth Proportional to 356,340.78, 533,268.62 and 291,550.13

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Solution

The fourth proportional to 356,340.78, 533,268.62 and 291,550.13 is: 436,308.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,340.78 : 533,268.62 = 291,550.13 : x
  2. Step 2: Convert to fraction form
    356,340.78/533,268.62 = 291,550.13/x
  3. Step 3: Cross multiply
    356,340.78x = 533,268.62 × 291,550.13
  4. Step 4: Simplify right side
    356,340.78x = 155,474,534,454.90
  5. Step 5: Solve for x
    x = 155,474,534,454.90/356,340.78
  6. Step 6: Final answer
    x = 436,308.57

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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.