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Finding the Fourth Proportional to 374,655.68, 561,391.68 and 304,190.72

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Solution

The fourth proportional to 374,655.68, 561,391.68 and 304,190.72 is: 455,805.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,655.68 : 561,391.68 = 304,190.72 : x
  2. Step 2: Convert to fraction form
    374,655.68/561,391.68 = 304,190.72/x
  3. Step 3: Cross multiply
    374,655.68x = 561,391.68 × 304,190.72
  4. Step 4: Simplify right side
    374,655.68x = 170,770,139,341.21
  5. Step 5: Solve for x
    x = 170,770,139,341.21/374,655.68
  6. Step 6: Final answer
    x = 455,805.55

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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.