Home / 426,741.05-640,206.89-160,503.86

Finding the Fourth Proportional to 426,741.05, 640,206.89 and 160,503.86

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Solution

The fourth proportional to 426,741.05, 640,206.89 and 160,503.86 is: 240,791.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,741.05 : 640,206.89 = 160,503.86 : x
  2. Step 2: Convert to fraction form
    426,741.05/640,206.89 = 160,503.86/x
  3. Step 3: Cross multiply
    426,741.05x = 640,206.89 × 160,503.86
  4. Step 4: Simplify right side
    426,741.05x = 102,755,673,040.04
  5. Step 5: Solve for x
    x = 102,755,673,040.04/426,741.05
  6. Step 6: Final answer
    x = 240,791.63

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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.