Home / 378,524.16-521,884.08-249,442.56

Finding the Fourth Proportional to 378,524.16, 521,884.08 and 249,442.56

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Solution

The fourth proportional to 378,524.16, 521,884.08 and 249,442.56 is: 343,914.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,524.16 : 521,884.08 = 249,442.56 : x
  2. Step 2: Convert to fraction form
    378,524.16/521,884.08 = 249,442.56/x
  3. Step 3: Cross multiply
    378,524.16x = 521,884.08 × 249,442.56
  4. Step 4: Simplify right side
    378,524.16x = 130,180,100,938.45
  5. Step 5: Solve for x
    x = 130,180,100,938.45/378,524.16
  6. Step 6: Final answer
    x = 343,914.91

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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.