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Finding the Fourth Proportional to 228,439.68, 315,345.60 and 171,864.96

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Solution

The fourth proportional to 228,439.68, 315,345.60 and 171,864.96 is: 237,248.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,439.68 : 315,345.60 = 171,864.96 : x
  2. Step 2: Convert to fraction form
    228,439.68/315,345.60 = 171,864.96/x
  3. Step 3: Cross multiply
    228,439.68x = 315,345.60 × 171,864.96
  4. Step 4: Simplify right side
    228,439.68x = 54,196,858,930.18
  5. Step 5: Solve for x
    x = 54,196,858,930.18/228,439.68
  6. Step 6: Final answer
    x = 237,248.01

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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.