Home / 247,914.80-371,872.20-142,938.80

Finding the Fourth Proportional to 247,914.80, 371,872.20 and 142,938.80

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Solution

The fourth proportional to 247,914.80, 371,872.20 and 142,938.80 is: 214,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,914.80 : 371,872.20 = 142,938.80 : x
  2. Step 2: Convert to fraction form
    247,914.80/371,872.20 = 142,938.80/x
  3. Step 3: Cross multiply
    247,914.80x = 371,872.20 × 142,938.80
  4. Step 4: Simplify right side
    247,914.80x = 53,154,966,021.36
  5. Step 5: Solve for x
    x = 53,154,966,021.36/247,914.80
  6. Step 6: Final answer
    x = 214,408.20

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1.5x scale

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.