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Finding the Fourth Proportional to 202,148.80, 303,223.20 and 127,353.40

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Solution

The fourth proportional to 202,148.80, 303,223.20 and 127,353.40 is: 191,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,148.80 : 303,223.20 = 127,353.40 : x
  2. Step 2: Convert to fraction form
    202,148.80/303,223.20 = 127,353.40/x
  3. Step 3: Cross multiply
    202,148.80x = 303,223.20 × 127,353.40
  4. Step 4: Simplify right side
    202,148.80x = 38,616,505,478.88
  5. Step 5: Solve for x
    x = 38,616,505,478.88/202,148.80
  6. Step 6: Final answer
    x = 191,030.10

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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.