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Finding the Fourth Proportional to 293,464.65, 440,347.10 and 139,764.64

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Solution

The fourth proportional to 293,464.65, 440,347.10 and 139,764.64 is: 209,718.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,464.65 : 440,347.10 = 139,764.64 : x
  2. Step 2: Convert to fraction form
    293,464.65/440,347.10 = 139,764.64/x
  3. Step 3: Cross multiply
    293,464.65x = 440,347.10 × 139,764.64
  4. Step 4: Simplify right side
    293,464.65x = 61,544,953,718.68
  5. Step 5: Solve for x
    x = 61,544,953,718.68/293,464.65
  6. Step 6: Final answer
    x = 209,718.45

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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.