Home / 316,161.36-436,318.65-187,173.86

Finding the Fourth Proportional to 316,161.36, 436,318.65 and 187,173.86

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Solution

The fourth proportional to 316,161.36, 436,318.65 and 187,173.86 is: 258,309.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,161.36 : 436,318.65 = 187,173.86 : x
  2. Step 2: Convert to fraction form
    316,161.36/436,318.65 = 187,173.86/x
  3. Step 3: Cross multiply
    316,161.36x = 436,318.65 × 187,173.86
  4. Step 4: Simplify right side
    316,161.36x = 81,667,443,728.90
  5. Step 5: Solve for x
    x = 81,667,443,728.90/316,161.36
  6. Step 6: Final answer
    x = 258,309.38

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1.5x scale

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.