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Finding the Fourth Proportional to 170,814.30, 256,221.45 and 76,044.30

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Solution

The fourth proportional to 170,814.30, 256,221.45 and 76,044.30 is: 114,066.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,814.30 : 256,221.45 = 76,044.30 : x
  2. Step 2: Convert to fraction form
    170,814.30/256,221.45 = 76,044.30/x
  3. Step 3: Cross multiply
    170,814.30x = 256,221.45 × 76,044.30
  4. Step 4: Simplify right side
    170,814.30x = 19,484,180,810.24
  5. Step 5: Solve for x
    x = 19,484,180,810.24/170,814.30
  6. Step 6: Final answer
    x = 114,066.45

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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.