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Finding the Fourth Proportional to 228,120.30, 342,277.65 and 157,961.34

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Solution

The fourth proportional to 228,120.30, 342,277.65 and 157,961.34 is: 237,009.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,120.30 : 342,277.65 = 157,961.34 : x
  2. Step 2: Convert to fraction form
    228,120.30/342,277.65 = 157,961.34/x
  3. Step 3: Cross multiply
    228,120.30x = 342,277.65 × 157,961.34
  4. Step 4: Simplify right side
    228,120.30x = 54,066,636,246.05
  5. Step 5: Solve for x
    x = 54,066,636,246.05/228,120.30
  6. Step 6: Final answer
    x = 237,009.32

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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.