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Finding the Fourth Proportional to 475,244.20, 712,866.30 and 142,820.20

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Solution

The fourth proportional to 475,244.20, 712,866.30 and 142,820.20 is: 214,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,244.20 : 712,866.30 = 142,820.20 : x
  2. Step 2: Convert to fraction form
    475,244.20/712,866.30 = 142,820.20/x
  3. Step 3: Cross multiply
    475,244.20x = 712,866.30 × 142,820.20
  4. Step 4: Simplify right side
    475,244.20x = 101,811,707,539.26
  5. Step 5: Solve for x
    x = 101,811,707,539.26/475,244.20
  6. Step 6: Final answer
    x = 214,230.30

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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.