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Finding the Fourth Proportional to 228,103, 314,775.60 and 126,126.68

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Solution

The fourth proportional to 228,103, 314,775.60 and 126,126.68 is: 174,051.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,103 : 314,775.60 = 126,126.68 : x
  2. Step 2: Convert to fraction form
    228,103/314,775.60 = 126,126.68/x
  3. Step 3: Cross multiply
    228,103x = 314,775.60 × 126,126.68
  4. Step 4: Simplify right side
    228,103x = 39,701,601,373.01
  5. Step 5: Solve for x
    x = 39,701,601,373.01/228,103
  6. Step 6: Final answer
    x = 174,051.20

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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.