Home / 289,987.03-434,398.51-147,826.56

Finding the Fourth Proportional to 289,987.03, 434,398.51 and 147,826.56

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Solution

The fourth proportional to 289,987.03, 434,398.51 and 147,826.56 is: 221,443.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,987.03 : 434,398.51 = 147,826.56 : x
  2. Step 2: Convert to fraction form
    289,987.03/434,398.51 = 147,826.56/x
  3. Step 3: Cross multiply
    289,987.03x = 434,398.51 × 147,826.56
  4. Step 4: Simplify right side
    289,987.03x = 64,215,639,216.20
  5. Step 5: Solve for x
    x = 64,215,639,216.20/289,987.03
  6. Step 6: Final answer
    x = 221,443.14

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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.