Home / 397,318.80-596,669.40-210,694.80

Finding the Fourth Proportional to 397,318.80, 596,669.40 and 210,694.80

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Solution

The fourth proportional to 397,318.80, 596,669.40 and 210,694.80 is: 316,408.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,318.80 : 596,669.40 = 210,694.80 : x
  2. Step 2: Convert to fraction form
    397,318.80/596,669.40 = 210,694.80/x
  3. Step 3: Cross multiply
    397,318.80x = 596,669.40 × 210,694.80
  4. Step 4: Simplify right side
    397,318.80x = 125,715,139,899.12
  5. Step 5: Solve for x
    x = 125,715,139,899.12/397,318.80
  6. Step 6: Final answer
    x = 316,408.74

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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.