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Finding the Fourth Proportional to 313,186.70, 469,780.97 and 133,225.76

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Solution

The fourth proportional to 313,186.70, 469,780.97 and 133,225.76 is: 199,839.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,186.70 : 469,780.97 = 133,225.76 : x
  2. Step 2: Convert to fraction form
    313,186.70/469,780.97 = 133,225.76/x
  3. Step 3: Cross multiply
    313,186.70x = 469,780.97 × 133,225.76
  4. Step 4: Simplify right side
    313,186.70x = 62,586,927,270.11
  5. Step 5: Solve for x
    x = 62,586,927,270.11/313,186.70
  6. Step 6: Final answer
    x = 199,839.03

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1.5x scale

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.