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Finding the Fourth Proportional to 242,809.30, 364,255.60 and 74,325.45

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Solution

The fourth proportional to 242,809.30, 364,255.60 and 74,325.45 is: 111,500.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,809.30 : 364,255.60 = 74,325.45 : x
  2. Step 2: Convert to fraction form
    242,809.30/364,255.60 = 74,325.45/x
  3. Step 3: Cross multiply
    242,809.30x = 364,255.60 × 74,325.45
  4. Step 4: Simplify right side
    242,809.30x = 27,073,461,385.02
  5. Step 5: Solve for x
    x = 27,073,461,385.02/242,809.30
  6. Step 6: Final answer
    x = 111,500.92

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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.