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Finding the Fourth Proportional to 438,025.87, 604,475.64 and 236,821.87

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Solution

The fourth proportional to 438,025.87, 604,475.64 and 236,821.87 is: 326,814.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,025.87 : 604,475.64 = 236,821.87 : x
  2. Step 2: Convert to fraction form
    438,025.87/604,475.64 = 236,821.87/x
  3. Step 3: Cross multiply
    438,025.87x = 604,475.64 × 236,821.87
  4. Step 4: Simplify right side
    438,025.87x = 143,153,051,434.25
  5. Step 5: Solve for x
    x = 143,153,051,434.25/438,025.87
  6. Step 6: Final answer
    x = 326,814.15

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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.