Home / 201,500.15-278,070.21-110,854.17

Finding the Fourth Proportional to 201,500.15, 278,070.21 and 110,854.17

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Solution

The fourth proportional to 201,500.15, 278,070.21 and 110,854.17 is: 152,978.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,500.15 : 278,070.21 = 110,854.17 : x
  2. Step 2: Convert to fraction form
    201,500.15/278,070.21 = 110,854.17/x
  3. Step 3: Cross multiply
    201,500.15x = 278,070.21 × 110,854.17
  4. Step 4: Simplify right side
    201,500.15x = 30,825,243,113.35
  5. Step 5: Solve for x
    x = 30,825,243,113.35/201,500.15
  6. Step 6: Final answer
    x = 152,978.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.