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Finding the Fourth Proportional to 312,171.66, 430,793.37 and 168,929.10

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Solution

The fourth proportional to 312,171.66, 430,793.37 and 168,929.10 is: 233,120.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,171.66 : 430,793.37 = 168,929.10 : x
  2. Step 2: Convert to fraction form
    312,171.66/430,793.37 = 168,929.10/x
  3. Step 3: Cross multiply
    312,171.66x = 430,793.37 × 168,929.10
  4. Step 4: Simplify right side
    312,171.66x = 72,773,536,280.07
  5. Step 5: Solve for x
    x = 72,773,536,280.07/312,171.66
  6. Step 6: Final answer
    x = 233,120.25

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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.