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Finding the Fourth Proportional to 354,055.85, 531,329.04 and 140,801.91

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Solution

The fourth proportional to 354,055.85, 531,329.04 and 140,801.91 is: 211,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,055.85 : 531,329.04 = 140,801.91 : x
  2. Step 2: Convert to fraction form
    354,055.85/531,329.04 = 140,801.91/x
  3. Step 3: Cross multiply
    354,055.85x = 531,329.04 × 140,801.91
  4. Step 4: Simplify right side
    354,055.85x = 74,812,143,270.31
  5. Step 5: Solve for x
    x = 74,812,143,270.31/354,055.85
  6. Step 6: Final answer
    x = 211,300.40

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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.