Home / 659,555.30-989,005.35-210,217.70

Finding the Fourth Proportional to 659,555.30, 989,005.35 and 210,217.70

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Solution

The fourth proportional to 659,555.30, 989,005.35 and 210,217.70 is: 315,222.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,555.30 : 989,005.35 = 210,217.70 : x
  2. Step 2: Convert to fraction form
    659,555.30/989,005.35 = 210,217.70/x
  3. Step 3: Cross multiply
    659,555.30x = 989,005.35 × 210,217.70
  4. Step 4: Simplify right side
    659,555.30x = 207,906,429,964.70
  5. Step 5: Solve for x
    x = 207,906,429,964.70/659,555.30
  6. Step 6: Final answer
    x = 315,222.14

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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.