Home / 388,928.22-536,764.32-245,681.34

Finding the Fourth Proportional to 388,928.22, 536,764.32 and 245,681.34

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Solution

The fourth proportional to 388,928.22, 536,764.32 and 245,681.34 is: 339,067.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,928.22 : 536,764.32 = 245,681.34 : x
  2. Step 2: Convert to fraction form
    388,928.22/536,764.32 = 245,681.34/x
  3. Step 3: Cross multiply
    388,928.22x = 536,764.32 × 245,681.34
  4. Step 4: Simplify right side
    388,928.22x = 131,872,977,401.79
  5. Step 5: Solve for x
    x = 131,872,977,401.79/388,928.22
  6. Step 6: Final answer
    x = 339,067.65

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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.