Home / 289,862.10-434,577.15-149,721.30

Finding the Fourth Proportional to 289,862.10, 434,577.15 and 149,721.30

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Solution

The fourth proportional to 289,862.10, 434,577.15 and 149,721.30 is: 224,470.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,862.10 : 434,577.15 = 149,721.30 : x
  2. Step 2: Convert to fraction form
    289,862.10/434,577.15 = 149,721.30/x
  3. Step 3: Cross multiply
    289,862.10x = 434,577.15 × 149,721.30
  4. Step 4: Simplify right side
    289,862.10x = 65,065,455,848.30
  5. Step 5: Solve for x
    x = 65,065,455,848.30/289,862.10
  6. Step 6: Final answer
    x = 224,470.38

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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.