Home / 289,774.20-434,078.10-164,969.40

Finding the Fourth Proportional to 289,774.20, 434,078.10 and 164,969.40

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Solution

The fourth proportional to 289,774.20, 434,078.10 and 164,969.40 is: 247,122.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,774.20 : 434,078.10 = 164,969.40 : x
  2. Step 2: Convert to fraction form
    289,774.20/434,078.10 = 164,969.40/x
  3. Step 3: Cross multiply
    289,774.20x = 434,078.10 × 164,969.40
  4. Step 4: Simplify right side
    289,774.20x = 71,609,603,710.14
  5. Step 5: Solve for x
    x = 71,609,603,710.14/289,774.20
  6. Step 6: Final answer
    x = 247,122.08

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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.