Home / 348,531.60-522,106.20-207,872.40

Finding the Fourth Proportional to 348,531.60, 522,106.20 and 207,872.40

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Solution

The fourth proportional to 348,531.60, 522,106.20 and 207,872.40 is: 311,396.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,531.60 : 522,106.20 = 207,872.40 : x
  2. Step 2: Convert to fraction form
    348,531.60/522,106.20 = 207,872.40/x
  3. Step 3: Cross multiply
    348,531.60x = 522,106.20 × 207,872.40
  4. Step 4: Simplify right side
    348,531.60x = 108,531,468,848.88
  5. Step 5: Solve for x
    x = 108,531,468,848.88/348,531.60
  6. Step 6: Final answer
    x = 311,396.35

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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.