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Finding the Fourth Proportional to 559,037.89, 838,546.71 and 138,313.63

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Solution

The fourth proportional to 559,037.89, 838,546.71 and 138,313.63 is: 207,467.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,037.89 : 838,546.71 = 138,313.63 : x
  2. Step 2: Convert to fraction form
    559,037.89/838,546.71 = 138,313.63/x
  3. Step 3: Cross multiply
    559,037.89x = 838,546.71 × 138,313.63
  4. Step 4: Simplify right side
    559,037.89x = 115,982,439,384.66
  5. Step 5: Solve for x
    x = 115,982,439,384.66/559,037.89
  6. Step 6: Final answer
    x = 207,467.94

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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.