Home / 400,748.72-601,141.68-223,121.84

Finding the Fourth Proportional to 400,748.72, 601,141.68 and 223,121.84

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Solution

The fourth proportional to 400,748.72, 601,141.68 and 223,121.84 is: 334,693.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,748.72 : 601,141.68 = 223,121.84 : x
  2. Step 2: Convert to fraction form
    400,748.72/601,141.68 = 223,121.84/x
  3. Step 3: Cross multiply
    400,748.72x = 601,141.68 × 223,121.84
  4. Step 4: Simplify right side
    400,748.72x = 134,127,837,742.29
  5. Step 5: Solve for x
    x = 134,127,837,742.29/400,748.72
  6. Step 6: Final answer
    x = 334,693.12

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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.