Home / 387,427.23-534,907.80-242,453.43

Finding the Fourth Proportional to 387,427.23, 534,907.80 and 242,453.43

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Solution

The fourth proportional to 387,427.23, 534,907.80 and 242,453.43 is: 334,747.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,427.23 : 534,907.80 = 242,453.43 : x
  2. Step 2: Convert to fraction form
    387,427.23/534,907.80 = 242,453.43/x
  3. Step 3: Cross multiply
    387,427.23x = 534,907.80 × 242,453.43
  4. Step 4: Simplify right side
    387,427.23x = 129,690,230,843.75
  5. Step 5: Solve for x
    x = 129,690,230,843.75/387,427.23
  6. Step 6: Final answer
    x = 334,747.33

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1.5x scale

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.