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Finding the Fourth Proportional to 338,355.70, 507,606.45 and 101,722.30

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Solution

The fourth proportional to 338,355.70, 507,606.45 and 101,722.30 is: 152,605.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,355.70 : 507,606.45 = 101,722.30 : x
  2. Step 2: Convert to fraction form
    338,355.70/507,606.45 = 101,722.30/x
  3. Step 3: Cross multiply
    338,355.70x = 507,606.45 × 101,722.30
  4. Step 4: Simplify right side
    338,355.70x = 51,634,895,588.84
  5. Step 5: Solve for x
    x = 51,634,895,588.84/338,355.70
  6. Step 6: Final answer
    x = 152,605.37

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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.