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Finding the Fourth Proportional to 285,848.33, 428,682.54 and 103,455.59

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Solution

The fourth proportional to 285,848.33, 428,682.54 and 103,455.59 is: 155,150.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,848.33 : 428,682.54 = 103,455.59 : x
  2. Step 2: Convert to fraction form
    285,848.33/428,682.54 = 103,455.59/x
  3. Step 3: Cross multiply
    285,848.33x = 428,682.54 × 103,455.59
  4. Step 4: Simplify right side
    285,848.33x = 44,349,605,098.40
  5. Step 5: Solve for x
    x = 44,349,605,098.40/285,848.33
  6. Step 6: Final answer
    x = 155,150.83

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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.