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Finding the Fourth Proportional to 446,988.78, 670,523.67 and 147,470.22

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Solution

The fourth proportional to 446,988.78, 670,523.67 and 147,470.22 is: 221,218.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,988.78 : 670,523.67 = 147,470.22 : x
  2. Step 2: Convert to fraction form
    446,988.78/670,523.67 = 147,470.22/x
  3. Step 3: Cross multiply
    446,988.78x = 670,523.67 × 147,470.22
  4. Step 4: Simplify right side
    446,988.78x = 98,882,273,130.11
  5. Step 5: Solve for x
    x = 98,882,273,130.11/446,988.78
  6. Step 6: Final answer
    x = 221,218.69

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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.