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Finding the Fourth Proportional to 205,325.40, 307,757.70 and 116,621.40

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Solution

The fourth proportional to 205,325.40, 307,757.70 and 116,621.40 is: 174,801.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,325.40 : 307,757.70 = 116,621.40 : x
  2. Step 2: Convert to fraction form
    205,325.40/307,757.70 = 116,621.40/x
  3. Step 3: Cross multiply
    205,325.40x = 307,757.70 × 116,621.40
  4. Step 4: Simplify right side
    205,325.40x = 35,891,133,834.78
  5. Step 5: Solve for x
    x = 35,891,133,834.78/205,325.40
  6. Step 6: Final answer
    x = 174,801.24

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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.