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Finding the Fourth Proportional to 294,562.60, 442,362.30 and 285,231.40

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Solution

The fourth proportional to 294,562.60, 442,362.30 and 285,231.40 is: 428,349.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,562.60 : 442,362.30 = 285,231.40 : x
  2. Step 2: Convert to fraction form
    294,562.60/442,362.30 = 285,231.40/x
  3. Step 3: Cross multiply
    294,562.60x = 442,362.30 × 285,231.40
  4. Step 4: Simplify right side
    294,562.60x = 126,175,618,136.22
  5. Step 5: Solve for x
    x = 126,175,618,136.22/294,562.60
  6. Step 6: Final answer
    x = 428,349.08

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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.