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Finding the Fourth Proportional to 293,086.40, 438,317.40 and 245,847.20

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Solution

The fourth proportional to 293,086.40, 438,317.40 and 245,847.20 is: 367,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,086.40 : 438,317.40 = 245,847.20 : x
  2. Step 2: Convert to fraction form
    293,086.40/438,317.40 = 245,847.20/x
  3. Step 3: Cross multiply
    293,086.40x = 438,317.40 × 245,847.20
  4. Step 4: Simplify right side
    293,086.40x = 107,759,105,501.28
  5. Step 5: Solve for x
    x = 107,759,105,501.28/293,086.40
  6. Step 6: Final answer
    x = 367,670.10

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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.