Home / 445,030.43-667,631.57-145,430.19

Finding the Fourth Proportional to 445,030.43, 667,631.57 and 145,430.19

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Solution

The fourth proportional to 445,030.43, 667,631.57 and 145,430.19 is: 218,173.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,030.43 : 667,631.57 = 145,430.19 : x
  2. Step 2: Convert to fraction form
    445,030.43/667,631.57 = 145,430.19/x
  3. Step 3: Cross multiply
    445,030.43x = 667,631.57 × 145,430.19
  4. Step 4: Simplify right side
    445,030.43x = 97,093,785,347.95
  5. Step 5: Solve for x
    x = 97,093,785,347.95/445,030.43
  6. Step 6: Final answer
    x = 218,173.36

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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.