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Finding the Fourth Proportional to 311,535.36, 429,918.24 and 168,294.96

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Solution

The fourth proportional to 311,535.36, 429,918.24 and 168,294.96 is: 232,246.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,535.36 : 429,918.24 = 168,294.96 : x
  2. Step 2: Convert to fraction form
    311,535.36/429,918.24 = 168,294.96/x
  3. Step 3: Cross multiply
    311,535.36x = 429,918.24 × 168,294.96
  4. Step 4: Simplify right side
    311,535.36x = 72,353,073,004.07
  5. Step 5: Solve for x
    x = 72,353,073,004.07/311,535.36
  6. Step 6: Final answer
    x = 232,246.74

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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.