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Finding the Fourth Proportional to 144,750.40, 217,048.80 and 51,259.20

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Solution

The fourth proportional to 144,750.40, 217,048.80 and 51,259.20 is: 76,861.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,750.40 : 217,048.80 = 51,259.20 : x
  2. Step 2: Convert to fraction form
    144,750.40/217,048.80 = 51,259.20/x
  3. Step 3: Cross multiply
    144,750.40x = 217,048.80 × 51,259.20
  4. Step 4: Simplify right side
    144,750.40x = 11,125,747,848.96
  5. Step 5: Solve for x
    x = 11,125,747,848.96/144,750.40
  6. Step 6: Final answer
    x = 76,861.60

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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.