Home / 288,185.14-431,391.95-245,669.86

Finding the Fourth Proportional to 288,185.14, 431,391.95 and 245,669.86

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Solution

The fourth proportional to 288,185.14, 431,391.95 and 245,669.86 is: 367,749.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,185.14 : 431,391.95 = 245,669.86 : x
  2. Step 2: Convert to fraction form
    288,185.14/431,391.95 = 245,669.86/x
  3. Step 3: Cross multiply
    288,185.14x = 431,391.95 × 245,669.86
  4. Step 4: Simplify right side
    288,185.14x = 105,979,999,961.63
  5. Step 5: Solve for x
    x = 105,979,999,961.63/288,185.14
  6. Step 6: Final answer
    x = 367,749.70

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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.