Home / 311,282.20-465,848.10-186,712.60

Finding the Fourth Proportional to 311,282.20, 465,848.10 and 186,712.60

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Solution

The fourth proportional to 311,282.20, 465,848.10 and 186,712.60 is: 279,423.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,282.20 : 465,848.10 = 186,712.60 : x
  2. Step 2: Convert to fraction form
    311,282.20/465,848.10 = 186,712.60/x
  3. Step 3: Cross multiply
    311,282.20x = 465,848.10 × 186,712.60
  4. Step 4: Simplify right side
    311,282.20x = 86,979,709,956.06
  5. Step 5: Solve for x
    x = 86,979,709,956.06/311,282.20
  6. Step 6: Final answer
    x = 279,423.98

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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.