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Finding the Fourth Proportional to 318,342.42, 439,305.39 and 175,099.32

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Solution

The fourth proportional to 318,342.42, 439,305.39 and 175,099.32 is: 241,633.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,342.42 : 439,305.39 = 175,099.32 : x
  2. Step 2: Convert to fraction form
    318,342.42/439,305.39 = 175,099.32/x
  3. Step 3: Cross multiply
    318,342.42x = 439,305.39 × 175,099.32
  4. Step 4: Simplify right side
    318,342.42x = 76,922,075,061.33
  5. Step 5: Solve for x
    x = 76,922,075,061.33/318,342.42
  6. Step 6: Final answer
    x = 241,633.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.