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Finding the Fourth Proportional to 144,973.60, 217,460.40 and 39,803.20

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Solution

The fourth proportional to 144,973.60, 217,460.40 and 39,803.20 is: 59,704.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,973.60 : 217,460.40 = 39,803.20 : x
  2. Step 2: Convert to fraction form
    144,973.60/217,460.40 = 39,803.20/x
  3. Step 3: Cross multiply
    144,973.60x = 217,460.40 × 39,803.20
  4. Step 4: Simplify right side
    144,973.60x = 8,655,619,793.28
  5. Step 5: Solve for x
    x = 8,655,619,793.28/144,973.60
  6. Step 6: Final answer
    x = 59,704.80

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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.