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Finding the Fourth Proportional to 338,189.05, 507,228.89 and 101,490.04

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Solution

The fourth proportional to 338,189.05, 507,228.89 and 101,490.04 is: 152,218.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,189.05 : 507,228.89 = 101,490.04 : x
  2. Step 2: Convert to fraction form
    338,189.05/507,228.89 = 101,490.04/x
  3. Step 3: Cross multiply
    338,189.05x = 507,228.89 × 101,490.04
  4. Step 4: Simplify right side
    338,189.05x = 51,478,679,320.91
  5. Step 5: Solve for x
    x = 51,478,679,320.91/338,189.05
  6. Step 6: Final answer
    x = 152,218.65

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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.