Home / 378,050.14-521,708.88-208,284.27

Finding the Fourth Proportional to 378,050.14, 521,708.88 and 208,284.27

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Solution

The fourth proportional to 378,050.14, 521,708.88 and 208,284.27 is: 287,432.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,050.14 : 521,708.88 = 208,284.27 : x
  2. Step 2: Convert to fraction form
    378,050.14/521,708.88 = 208,284.27/x
  3. Step 3: Cross multiply
    378,050.14x = 521,708.88 × 208,284.27
  4. Step 4: Simplify right side
    378,050.14x = 108,663,753,223.32
  5. Step 5: Solve for x
    x = 108,663,753,223.32/378,050.14
  6. Step 6: Final answer
    x = 287,432.12

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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.