Home / 245,307.45-338,633.61-172,775.59

Finding the Fourth Proportional to 245,307.45, 338,633.61 and 172,775.59

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Solution

The fourth proportional to 245,307.45, 338,633.61 and 172,775.59 is: 238,507.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,307.45 : 338,633.61 = 172,775.59 : x
  2. Step 2: Convert to fraction form
    245,307.45/338,633.61 = 172,775.59/x
  3. Step 3: Cross multiply
    245,307.45x = 338,633.61 × 172,775.59
  4. Step 4: Simplify right side
    245,307.45x = 58,507,621,761.58
  5. Step 5: Solve for x
    x = 58,507,621,761.58/245,307.45
  6. Step 6: Final answer
    x = 238,507.32

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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.