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Finding the Fourth Proportional to 348,530.60, 522,104.70 and 207,871.40

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Solution

The fourth proportional to 348,530.60, 522,104.70 and 207,871.40 is: 311,394.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,530.60 : 522,104.70 = 207,871.40 : x
  2. Step 2: Convert to fraction form
    348,530.60/522,104.70 = 207,871.40/x
  3. Step 3: Cross multiply
    348,530.60x = 522,104.70 × 207,871.40
  4. Step 4: Simplify right side
    348,530.60x = 108,530,634,935.58
  5. Step 5: Solve for x
    x = 108,530,634,935.58/348,530.60
  6. Step 6: Final answer
    x = 311,394.85

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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.