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Finding the Fourth Proportional to 440,880.21, 661,254.71 and 141,329.66

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Solution

The fourth proportional to 440,880.21, 661,254.71 and 141,329.66 is: 211,973.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,880.21 : 661,254.71 = 141,329.66 : x
  2. Step 2: Convert to fraction form
    440,880.21/661,254.71 = 141,329.66/x
  3. Step 3: Cross multiply
    440,880.21x = 661,254.71 × 141,329.66
  4. Step 4: Simplify right side
    440,880.21x = 93,454,899,324.78
  5. Step 5: Solve for x
    x = 93,454,899,324.78/440,880.21
  6. Step 6: Final answer
    x = 211,973.45

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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.