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Finding the Fourth Proportional to 243,109.60, 364,475.57 and 157,539.69

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Solution

The fourth proportional to 243,109.60, 364,475.57 and 157,539.69 is: 236,187.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,109.60 : 364,475.57 = 157,539.69 : x
  2. Step 2: Convert to fraction form
    243,109.60/364,475.57 = 157,539.69/x
  3. Step 3: Cross multiply
    243,109.60x = 364,475.57 × 157,539.69
  4. Step 4: Simplify right side
    243,109.60x = 57,419,368,310.37
  5. Step 5: Solve for x
    x = 57,419,368,310.37/243,109.60
  6. Step 6: Final answer
    x = 236,187.17

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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.