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Finding the Fourth Proportional to 228,237.99, 342,503.87 and 123,129.51

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Solution

The fourth proportional to 228,237.99, 342,503.87 and 123,129.51 is: 184,773.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,237.99 : 342,503.87 = 123,129.51 : x
  2. Step 2: Convert to fraction form
    228,237.99/342,503.87 = 123,129.51/x
  3. Step 3: Cross multiply
    228,237.99x = 342,503.87 × 123,129.51
  4. Step 4: Simplify right side
    228,237.99x = 42,172,333,686.20
  5. Step 5: Solve for x
    x = 42,172,333,686.20/228,237.99
  6. Step 6: Final answer
    x = 184,773.51

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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.