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Finding the Fourth Proportional to 401,068.70, 601,408.65 and 223,387.10

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Solution

The fourth proportional to 401,068.70, 601,408.65 and 223,387.10 is: 334,972.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,068.70 : 601,408.65 = 223,387.10 : x
  2. Step 2: Convert to fraction form
    401,068.70/601,408.65 = 223,387.10/x
  3. Step 3: Cross multiply
    401,068.70x = 601,408.65 × 223,387.10
  4. Step 4: Simplify right side
    401,068.70x = 134,346,934,238.42
  5. Step 5: Solve for x
    x = 134,346,934,238.42/401,068.70
  6. Step 6: Final answer
    x = 334,972.37

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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.