Home / 659,393.39-989,079.23-210,108.18

Finding the Fourth Proportional to 659,393.39, 989,079.23 and 210,108.18

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Solution

The fourth proportional to 659,393.39, 989,079.23 and 210,108.18 is: 315,158.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,393.39 : 989,079.23 = 210,108.18 : x
  2. Step 2: Convert to fraction form
    659,393.39/989,079.23 = 210,108.18/x
  3. Step 3: Cross multiply
    659,393.39x = 989,079.23 × 210,108.18
  4. Step 4: Simplify right side
    659,393.39x = 207,813,635,840.56
  5. Step 5: Solve for x
    x = 207,813,635,840.56/659,393.39
  6. Step 6: Final answer
    x = 315,158.81

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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.