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Finding the Fourth Proportional to 338,147.79, 507,230.91 and 101,490.47

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Solution

The fourth proportional to 338,147.79, 507,230.91 and 101,490.47 is: 152,238.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,147.79 : 507,230.91 = 101,490.47 : x
  2. Step 2: Convert to fraction form
    338,147.79/507,230.91 = 101,490.47/x
  3. Step 3: Cross multiply
    338,147.79x = 507,230.91 × 101,490.47
  4. Step 4: Simplify right side
    338,147.79x = 51,479,102,820.39
  5. Step 5: Solve for x
    x = 51,479,102,820.39/338,147.79
  6. Step 6: Final answer
    x = 152,238.47

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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.