Home / 472,914.86-709,240.98-131,279.80

Finding the Fourth Proportional to 472,914.86, 709,240.98 and 131,279.80

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Solution

The fourth proportional to 472,914.86, 709,240.98 and 131,279.80 is: 196,883.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,914.86 : 709,240.98 = 131,279.80 : x
  2. Step 2: Convert to fraction form
    472,914.86/709,240.98 = 131,279.80/x
  3. Step 3: Cross multiply
    472,914.86x = 709,240.98 × 131,279.80
  4. Step 4: Simplify right side
    472,914.86x = 93,109,014,006.20
  5. Step 5: Solve for x
    x = 93,109,014,006.20/472,914.86
  6. Step 6: Final answer
    x = 196,883.25

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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.