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Finding the Fourth Proportional to 293,090.80, 439,636.20 and 115,501.12

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Solution

The fourth proportional to 293,090.80, 439,636.20 and 115,501.12 is: 173,251.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,090.80 : 439,636.20 = 115,501.12 : x
  2. Step 2: Convert to fraction form
    293,090.80/439,636.20 = 115,501.12/x
  3. Step 3: Cross multiply
    293,090.80x = 439,636.20 × 115,501.12
  4. Step 4: Simplify right side
    293,090.80x = 50,778,473,492.54
  5. Step 5: Solve for x
    x = 50,778,473,492.54/293,090.80
  6. Step 6: Final answer
    x = 173,251.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.