Home / 207,415.08-311,088.60-74,275.38

Finding the Fourth Proportional to 207,415.08, 311,088.60 and 74,275.38

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Solution

The fourth proportional to 207,415.08, 311,088.60 and 74,275.38 is: 111,400.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,415.08 : 311,088.60 = 74,275.38 : x
  2. Step 2: Convert to fraction form
    207,415.08/311,088.60 = 74,275.38/x
  3. Step 3: Cross multiply
    207,415.08x = 311,088.60 × 74,275.38
  4. Step 4: Simplify right side
    207,415.08x = 23,106,223,978.67
  5. Step 5: Solve for x
    x = 23,106,223,978.67/207,415.08
  6. Step 6: Final answer
    x = 111,400.89

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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.