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Finding the Fourth Proportional to 291,703.70, 437,523.15 and 239,021.30

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Solution

The fourth proportional to 291,703.70, 437,523.15 and 239,021.30 is: 358,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,703.70 : 437,523.15 = 239,021.30 : x
  2. Step 2: Convert to fraction form
    291,703.70/437,523.15 = 239,021.30/x
  3. Step 3: Cross multiply
    291,703.70x = 437,523.15 × 239,021.30
  4. Step 4: Simplify right side
    291,703.70x = 104,577,352,093.10
  5. Step 5: Solve for x
    x = 104,577,352,093.10/291,703.70
  6. Step 6: Final answer
    x = 358,505.40

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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.