Home / 659,442.08-989,144.57-210,189.87

Finding the Fourth Proportional to 659,442.08, 989,144.57 and 210,189.87

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Solution

The fourth proportional to 659,442.08, 989,144.57 and 210,189.87 is: 315,278.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,442.08 : 989,144.57 = 210,189.87 : x
  2. Step 2: Convert to fraction form
    659,442.08/989,144.57 = 210,189.87/x
  3. Step 3: Cross multiply
    659,442.08x = 989,144.57 × 210,189.87
  4. Step 4: Simplify right side
    659,442.08x = 207,908,167,528.56
  5. Step 5: Solve for x
    x = 207,908,167,528.56/659,442.08
  6. Step 6: Final answer
    x = 315,278.89

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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.