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Finding the Fourth Proportional to 293,907.60, 440,861.40 and 72,291.60

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Solution

The fourth proportional to 293,907.60, 440,861.40 and 72,291.60 is: 108,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,907.60 : 440,861.40 = 72,291.60 : x
  2. Step 2: Convert to fraction form
    293,907.60/440,861.40 = 72,291.60/x
  3. Step 3: Cross multiply
    293,907.60x = 440,861.40 × 72,291.60
  4. Step 4: Simplify right side
    293,907.60x = 31,870,575,984.24
  5. Step 5: Solve for x
    x = 31,870,575,984.24/293,907.60
  6. Step 6: Final answer
    x = 108,437.40

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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.