Home / 315,899.46-435,938.73-178,065.84

Finding the Fourth Proportional to 315,899.46, 435,938.73 and 178,065.84

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Solution

The fourth proportional to 315,899.46, 435,938.73 and 178,065.84 is: 245,729.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,899.46 : 435,938.73 = 178,065.84 : x
  2. Step 2: Convert to fraction form
    315,899.46/435,938.73 = 178,065.84/x
  3. Step 3: Cross multiply
    315,899.46x = 435,938.73 × 178,065.84
  4. Step 4: Simplify right side
    315,899.46x = 77,625,796,145.98
  5. Step 5: Solve for x
    x = 77,625,796,145.98/315,899.46
  6. Step 6: Final answer
    x = 245,729.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.