Home / 380,278.61-524,790.68-208,193.69

Finding the Fourth Proportional to 380,278.61, 524,790.68 and 208,193.69

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Solution

The fourth proportional to 380,278.61, 524,790.68 and 208,193.69 is: 287,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,278.61 : 524,790.68 = 208,193.69 : x
  2. Step 2: Convert to fraction form
    380,278.61/524,790.68 = 208,193.69/x
  3. Step 3: Cross multiply
    380,278.61x = 524,790.68 × 208,193.69
  4. Step 4: Simplify right side
    380,278.61x = 109,258,104,481.89
  5. Step 5: Solve for x
    x = 109,258,104,481.89/380,278.61
  6. Step 6: Final answer
    x = 287,310.68

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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.