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Finding the Fourth Proportional to 228,123.63, 314,812.64 and 126,155.94

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Solution

The fourth proportional to 228,123.63, 314,812.64 and 126,155.94 is: 174,096.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,123.63 : 314,812.64 = 126,155.94 : x
  2. Step 2: Convert to fraction form
    228,123.63/314,812.64 = 126,155.94/x
  3. Step 3: Cross multiply
    228,123.63x = 314,812.64 × 126,155.94
  4. Step 4: Simplify right side
    228,123.63x = 39,715,483,892.30
  5. Step 5: Solve for x
    x = 39,715,483,892.30/228,123.63
  6. Step 6: Final answer
    x = 174,096.32

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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.