Home / 380,282.12-524,795.50-208,197.20

Finding the Fourth Proportional to 380,282.12, 524,795.50 and 208,197.20

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Solution

The fourth proportional to 380,282.12, 524,795.50 and 208,197.20 is: 287,315.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,282.12 : 524,795.50 = 208,197.20 : x
  2. Step 2: Convert to fraction form
    380,282.12/524,795.50 = 208,197.20/x
  3. Step 3: Cross multiply
    380,282.12x = 524,795.50 × 208,197.20
  4. Step 4: Simplify right side
    380,282.12x = 109,260,953,672.60
  5. Step 5: Solve for x
    x = 109,260,953,672.60/380,282.12
  6. Step 6: Final answer
    x = 287,315.52

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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.