Home / 287,950.56-431,929.68-100,967.52

Finding the Fourth Proportional to 287,950.56, 431,929.68 and 100,967.52

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Solution

The fourth proportional to 287,950.56, 431,929.68 and 100,967.52 is: 151,452.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,950.56 : 431,929.68 = 100,967.52 : x
  2. Step 2: Convert to fraction form
    287,950.56/431,929.68 = 100,967.52/x
  3. Step 3: Cross multiply
    287,950.56x = 431,929.68 × 100,967.52
  4. Step 4: Simplify right side
    287,950.56x = 43,610,868,603.99
  5. Step 5: Solve for x
    x = 43,610,868,603.99/287,950.56
  6. Step 6: Final answer
    x = 151,452.63

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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.