Home / 289,829.40-434,960.10-149,515.80

Finding the Fourth Proportional to 289,829.40, 434,960.10 and 149,515.80

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Solution

The fourth proportional to 289,829.40, 434,960.10 and 149,515.80 is: 224,385.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,829.40 : 434,960.10 = 149,515.80 : x
  2. Step 2: Convert to fraction form
    289,829.40/434,960.10 = 149,515.80/x
  3. Step 3: Cross multiply
    289,829.40x = 434,960.10 × 149,515.80
  4. Step 4: Simplify right side
    289,829.40x = 65,033,407,319.58
  5. Step 5: Solve for x
    x = 65,033,407,319.58/289,829.40
  6. Step 6: Final answer
    x = 224,385.13

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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.