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Finding the Fourth Proportional to 392,774.10, 542,032.06 and 223,012.02

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Solution

The fourth proportional to 392,774.10, 542,032.06 and 223,012.02 is: 307,758.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,774.10 : 542,032.06 = 223,012.02 : x
  2. Step 2: Convert to fraction form
    392,774.10/542,032.06 = 223,012.02/x
  3. Step 3: Cross multiply
    392,774.10x = 542,032.06 × 223,012.02
  4. Step 4: Simplify right side
    392,774.10x = 120,879,664,605.36
  5. Step 5: Solve for x
    x = 120,879,664,605.36/392,774.10
  6. Step 6: Final answer
    x = 307,758.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.