Home / 247,980.20-371,984.70-70,500.20

Finding the Fourth Proportional to 247,980.20, 371,984.70 and 70,500.20

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Solution

The fourth proportional to 247,980.20, 371,984.70 and 70,500.20 is: 105,754.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,980.20 : 371,984.70 = 70,500.20 : x
  2. Step 2: Convert to fraction form
    247,980.20/371,984.70 = 70,500.20/x
  3. Step 3: Cross multiply
    247,980.20x = 371,984.70 × 70,500.20
  4. Step 4: Simplify right side
    247,980.20x = 26,224,995,746.94
  5. Step 5: Solve for x
    x = 26,224,995,746.94/247,980.20
  6. Step 6: Final answer
    x = 105,754.39

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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.