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Finding the Fourth Proportional to 228,806.68, 315,727.74 and 133,293.40

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Solution

The fourth proportional to 228,806.68, 315,727.74 and 133,293.40 is: 183,930.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,806.68 : 315,727.74 = 133,293.40 : x
  2. Step 2: Convert to fraction form
    228,806.68/315,727.74 = 133,293.40/x
  3. Step 3: Cross multiply
    228,806.68x = 315,727.74 × 133,293.40
  4. Step 4: Simplify right side
    228,806.68x = 42,084,423,938.92
  5. Step 5: Solve for x
    x = 42,084,423,938.92/228,806.68
  6. Step 6: Final answer
    x = 183,930.05

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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.