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Finding the Fourth Proportional to 501,005.74, 751,510.12 and 121,926.52

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Solution

The fourth proportional to 501,005.74, 751,510.12 and 121,926.52 is: 182,890.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,005.74 : 751,510.12 = 121,926.52 : x
  2. Step 2: Convert to fraction form
    501,005.74/751,510.12 = 121,926.52/x
  3. Step 3: Cross multiply
    501,005.74x = 751,510.12 × 121,926.52
  4. Step 4: Simplify right side
    501,005.74x = 91,629,013,676.38
  5. Step 5: Solve for x
    x = 91,629,013,676.38/501,005.74
  6. Step 6: Final answer
    x = 182,890.15

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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.