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Finding the Fourth Proportional to 228,153.86, 314,522.97 and 156,420.26

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Solution

The fourth proportional to 228,153.86, 314,522.97 and 156,420.26 is: 215,634.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,153.86 : 314,522.97 = 156,420.26 : x
  2. Step 2: Convert to fraction form
    228,153.86/314,522.97 = 156,420.26/x
  3. Step 3: Cross multiply
    228,153.86x = 314,522.97 × 156,420.26
  4. Step 4: Simplify right side
    228,153.86x = 49,197,764,743.37
  5. Step 5: Solve for x
    x = 49,197,764,743.37/228,153.86
  6. Step 6: Final answer
    x = 215,634.15

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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.