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Finding the Fourth Proportional to 202,208.40, 303,312.60 and 146,221.20

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Solution

The fourth proportional to 202,208.40, 303,312.60 and 146,221.20 is: 219,331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,208.40 : 303,312.60 = 146,221.20 : x
  2. Step 2: Convert to fraction form
    202,208.40/303,312.60 = 146,221.20/x
  3. Step 3: Cross multiply
    202,208.40x = 303,312.60 × 146,221.20
  4. Step 4: Simplify right side
    202,208.40x = 44,350,732,347.12
  5. Step 5: Solve for x
    x = 44,350,732,347.12/202,208.40
  6. Step 6: Final answer
    x = 219,331.80

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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.