Home / 380,315.26-524,815.08-208,200.25

Finding the Fourth Proportional to 380,315.26, 524,815.08 and 208,200.25

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Solution

The fourth proportional to 380,315.26, 524,815.08 and 208,200.25 is: 287,305.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,315.26 : 524,815.08 = 208,200.25 : x
  2. Step 2: Convert to fraction form
    380,315.26/524,815.08 = 208,200.25/x
  3. Step 3: Cross multiply
    380,315.26x = 524,815.08 × 208,200.25
  4. Step 4: Simplify right side
    380,315.26x = 109,266,630,859.77
  5. Step 5: Solve for x
    x = 109,266,630,859.77/380,315.26
  6. Step 6: Final answer
    x = 287,305.41

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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.