Home / 218,887.20-328,330.94-69,142.77

Finding the Fourth Proportional to 218,887.20, 328,330.94 and 69,142.77

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Solution

The fourth proportional to 218,887.20, 328,330.94 and 69,142.77 is: 103,714.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,887.20 : 328,330.94 = 69,142.77 : x
  2. Step 2: Convert to fraction form
    218,887.20/328,330.94 = 69,142.77/x
  3. Step 3: Cross multiply
    218,887.20x = 328,330.94 × 69,142.77
  4. Step 4: Simplify right side
    218,887.20x = 22,701,710,322.59
  5. Step 5: Solve for x
    x = 22,701,710,322.59/218,887.20
  6. Step 6: Final answer
    x = 103,714.20

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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.