Home / 385,775.72-579,037.58-186,236.52

Finding the Fourth Proportional to 385,775.72, 579,037.58 and 186,236.52

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Solution

The fourth proportional to 385,775.72, 579,037.58 and 186,236.52 is: 279,535.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,775.72 : 579,037.58 = 186,236.52 : x
  2. Step 2: Convert to fraction form
    385,775.72/579,037.58 = 186,236.52/x
  3. Step 3: Cross multiply
    385,775.72x = 579,037.58 × 186,236.52
  4. Step 4: Simplify right side
    385,775.72x = 107,837,943,848.42
  5. Step 5: Solve for x
    x = 107,837,943,848.42/385,775.72
  6. Step 6: Final answer
    x = 279,535.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.