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Finding the Fourth Proportional to 170,802.90, 256,204.35 and 133,478.10

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Solution

The fourth proportional to 170,802.90, 256,204.35 and 133,478.10 is: 200,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,802.90 : 256,204.35 = 133,478.10 : x
  2. Step 2: Convert to fraction form
    170,802.90/256,204.35 = 133,478.10/x
  3. Step 3: Cross multiply
    170,802.90x = 256,204.35 × 133,478.10
  4. Step 4: Simplify right side
    170,802.90x = 34,197,669,849.74
  5. Step 5: Solve for x
    x = 34,197,669,849.74/170,802.90
  6. Step 6: Final answer
    x = 200,217.15

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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.