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Finding the Fourth Proportional to 202,110.30, 303,165.45 and 68,970.60

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Solution

The fourth proportional to 202,110.30, 303,165.45 and 68,970.60 is: 103,455.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,110.30 : 303,165.45 = 68,970.60 : x
  2. Step 2: Convert to fraction form
    202,110.30/303,165.45 = 68,970.60/x
  3. Step 3: Cross multiply
    202,110.30x = 303,165.45 × 68,970.60
  4. Step 4: Simplify right side
    202,110.30x = 20,909,502,985.77
  5. Step 5: Solve for x
    x = 20,909,502,985.77/202,110.30
  6. Step 6: Final answer
    x = 103,455.90

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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.