Home / 247,217.10-370,825.65-81,005.10

Finding the Fourth Proportional to 247,217.10, 370,825.65 and 81,005.10

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Solution

The fourth proportional to 247,217.10, 370,825.65 and 81,005.10 is: 121,507.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,217.10 : 370,825.65 = 81,005.10 : x
  2. Step 2: Convert to fraction form
    247,217.10/370,825.65 = 81,005.10/x
  3. Step 3: Cross multiply
    247,217.10x = 370,825.65 × 81,005.10
  4. Step 4: Simplify right side
    247,217.10x = 30,038,768,860.82
  5. Step 5: Solve for x
    x = 30,038,768,860.82/247,217.10
  6. Step 6: Final answer
    x = 121,507.65

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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.