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Finding the Fourth Proportional to 228,359.58, 315,140.16 and 126,393.45

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Solution

The fourth proportional to 228,359.58, 315,140.16 and 126,393.45 is: 174,425.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,359.58 : 315,140.16 = 126,393.45 : x
  2. Step 2: Convert to fraction form
    228,359.58/315,140.16 = 126,393.45/x
  3. Step 3: Cross multiply
    228,359.58x = 315,140.16 × 126,393.45
  4. Step 4: Simplify right side
    228,359.58x = 39,831,652,055.95
  5. Step 5: Solve for x
    x = 39,831,652,055.95/228,359.58
  6. Step 6: Final answer
    x = 174,425.14

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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.