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Finding the Fourth Proportional to 170,809.40, 256,214.10 and 133,484.60

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Solution

The fourth proportional to 170,809.40, 256,214.10 and 133,484.60 is: 200,226.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,809.40 : 256,214.10 = 133,484.60 : x
  2. Step 2: Convert to fraction form
    170,809.40/256,214.10 = 133,484.60/x
  3. Step 3: Cross multiply
    170,809.40x = 256,214.10 × 133,484.60
  4. Step 4: Simplify right side
    170,809.40x = 34,200,636,652.86
  5. Step 5: Solve for x
    x = 34,200,636,652.86/170,809.40
  6. Step 6: Final answer
    x = 200,226.90

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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.