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Finding the Fourth Proportional to 348,277.02, 522,415.62 and 278,599.20

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Solution

The fourth proportional to 348,277.02, 522,415.62 and 278,599.20 is: 417,898.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,277.02 : 522,415.62 = 278,599.20 : x
  2. Step 2: Convert to fraction form
    348,277.02/522,415.62 = 278,599.20/x
  3. Step 3: Cross multiply
    348,277.02x = 522,415.62 × 278,599.20
  4. Step 4: Simplify right side
    348,277.02x = 145,544,573,799.50
  5. Step 5: Solve for x
    x = 145,544,573,799.50/348,277.02
  6. Step 6: Final answer
    x = 417,898.87

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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.