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Finding the Fourth Proportional to 293,130.60, 439,841.70 and 115,643.40

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Solution

The fourth proportional to 293,130.60, 439,841.70 and 115,643.40 is: 173,522.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,130.60 : 439,841.70 = 115,643.40 : x
  2. Step 2: Convert to fraction form
    293,130.60/439,841.70 = 115,643.40/x
  3. Step 3: Cross multiply
    293,130.60x = 439,841.70 × 115,643.40
  4. Step 4: Simplify right side
    293,130.60x = 50,864,789,649.78
  5. Step 5: Solve for x
    x = 50,864,789,649.78/293,130.60
  6. Step 6: Final answer
    x = 173,522.62

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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.