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Finding the Fourth Proportional to 225,026.60, 337,539.90 and 212,779.40

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Solution

The fourth proportional to 225,026.60, 337,539.90 and 212,779.40 is: 319,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,026.60 : 337,539.90 = 212,779.40 : x
  2. Step 2: Convert to fraction form
    225,026.60/337,539.90 = 212,779.40/x
  3. Step 3: Cross multiply
    225,026.60x = 337,539.90 × 212,779.40
  4. Step 4: Simplify right side
    225,026.60x = 71,821,537,398.06
  5. Step 5: Solve for x
    x = 71,821,537,398.06/225,026.60
  6. Step 6: Final answer
    x = 319,169.10

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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.