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Finding the Fourth Proportional to 242,906.72, 335,211.84 and 135,483.71

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Solution

The fourth proportional to 242,906.72, 335,211.84 and 135,483.71 is: 186,967.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,906.72 : 335,211.84 = 135,483.71 : x
  2. Step 2: Convert to fraction form
    242,906.72/335,211.84 = 135,483.71/x
  3. Step 3: Cross multiply
    242,906.72x = 335,211.84 × 135,483.71
  4. Step 4: Simplify right side
    242,906.72x = 45,415,742,043.07
  5. Step 5: Solve for x
    x = 45,415,742,043.07/242,906.72
  6. Step 6: Final answer
    x = 186,967.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.