Home / 405,442.40-559,417.72-242,067.17

Finding the Fourth Proportional to 405,442.40, 559,417.72 and 242,067.17

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Solution

The fourth proportional to 405,442.40, 559,417.72 and 242,067.17 is: 333,997.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,442.40 : 559,417.72 = 242,067.17 : x
  2. Step 2: Convert to fraction form
    405,442.40/559,417.72 = 242,067.17/x
  3. Step 3: Cross multiply
    405,442.40x = 559,417.72 × 242,067.17
  4. Step 4: Simplify right side
    405,442.40x = 135,416,664,328.25
  5. Step 5: Solve for x
    x = 135,416,664,328.25/405,442.40
  6. Step 6: Final answer
    x = 333,997.29

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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.