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Finding the Fourth Proportional to 296,543.60, 444,847.80 and 287,212.40

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Solution

The fourth proportional to 296,543.60, 444,847.80 and 287,212.40 is: 430,849.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,543.60 : 444,847.80 = 287,212.40 : x
  2. Step 2: Convert to fraction form
    296,543.60/444,847.80 = 287,212.40/x
  3. Step 3: Cross multiply
    296,543.60x = 444,847.80 × 287,212.40
  4. Step 4: Simplify right side
    296,543.60x = 127,765,804,272.72
  5. Step 5: Solve for x
    x = 127,765,804,272.72/296,543.60
  6. Step 6: Final answer
    x = 430,849.98

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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.