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Finding the Fourth Proportional to 294,664.90, 440,830.95 and 255,655.30

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Solution

The fourth proportional to 294,664.90, 440,830.95 and 255,655.30 is: 382,470.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,664.90 : 440,830.95 = 255,655.30 : x
  2. Step 2: Convert to fraction form
    294,664.90/440,830.95 = 255,655.30/x
  3. Step 3: Cross multiply
    294,664.90x = 440,830.95 × 255,655.30
  4. Step 4: Simplify right side
    294,664.90x = 112,700,768,771.54
  5. Step 5: Solve for x
    x = 112,700,768,771.54/294,664.90
  6. Step 6: Final answer
    x = 382,470.97

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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.