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Finding the Fourth Proportional to 228,369.60, 315,143.55 and 126,399.24

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Solution

The fourth proportional to 228,369.60, 315,143.55 and 126,399.24 is: 174,427.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,369.60 : 315,143.55 = 126,399.24 : x
  2. Step 2: Convert to fraction form
    228,369.60/315,143.55 = 126,399.24/x
  3. Step 3: Cross multiply
    228,369.60x = 315,143.55 × 126,399.24
  4. Step 4: Simplify right side
    228,369.60x = 39,833,905,210.90
  5. Step 5: Solve for x
    x = 39,833,905,210.90/228,369.60
  6. Step 6: Final answer
    x = 174,427.35

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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.