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Finding the Fourth Proportional to 343,740.52, 474,354.78 and 190,769.83

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Solution

The fourth proportional to 343,740.52, 474,354.78 and 190,769.83 is: 263,258.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,740.52 : 474,354.78 = 190,769.83 : x
  2. Step 2: Convert to fraction form
    343,740.52/474,354.78 = 190,769.83/x
  3. Step 3: Cross multiply
    343,740.52x = 474,354.78 × 190,769.83
  4. Step 4: Simplify right side
    343,740.52x = 90,492,580,740.29
  5. Step 5: Solve for x
    x = 90,492,580,740.29/343,740.52
  6. Step 6: Final answer
    x = 263,258.40

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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.