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Finding the Fourth Proportional to 559,038.89, 838,548.21 and 138,314.63

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Solution

The fourth proportional to 559,038.89, 838,548.21 and 138,314.63 is: 207,469.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,038.89 : 838,548.21 = 138,314.63 : x
  2. Step 2: Convert to fraction form
    559,038.89/838,548.21 = 138,314.63/x
  3. Step 3: Cross multiply
    559,038.89x = 838,548.21 × 138,314.63
  4. Step 4: Simplify right side
    559,038.89x = 115,983,485,403.31
  5. Step 5: Solve for x
    x = 115,983,485,403.31/559,038.89
  6. Step 6: Final answer
    x = 207,469.44

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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.