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Finding the Fourth Proportional to 144,917.40, 217,440.90 and 70,008.60

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Solution

The fourth proportional to 144,917.40, 217,440.90 and 70,008.60 is: 105,044.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,917.40 : 217,440.90 = 70,008.60 : x
  2. Step 2: Convert to fraction form
    144,917.40/217,440.90 = 70,008.60/x
  3. Step 3: Cross multiply
    144,917.40x = 217,440.90 × 70,008.60
  4. Step 4: Simplify right side
    144,917.40x = 15,222,732,991.74
  5. Step 5: Solve for x
    x = 15,222,732,991.74/144,917.40
  6. Step 6: Final answer
    x = 105,044.20

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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.