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Finding the Fourth Proportional to 303,971.10, 455,913.45 and 93,630.30

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Solution

The fourth proportional to 303,971.10, 455,913.45 and 93,630.30 is: 140,432.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,971.10 : 455,913.45 = 93,630.30 : x
  2. Step 2: Convert to fraction form
    303,971.10/455,913.45 = 93,630.30/x
  3. Step 3: Cross multiply
    303,971.10x = 455,913.45 × 93,630.30
  4. Step 4: Simplify right side
    303,971.10x = 42,687,313,097.54
  5. Step 5: Solve for x
    x = 42,687,313,097.54/303,971.10
  6. Step 6: Final answer
    x = 140,432.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.