Home / 218,584.05-301,640.10-123,088.70

Finding the Fourth Proportional to 218,584.05, 301,640.10 and 123,088.70

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Solution

The fourth proportional to 218,584.05, 301,640.10 and 123,088.70 is: 169,859.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,584.05 : 301,640.10 = 123,088.70 : x
  2. Step 2: Convert to fraction form
    218,584.05/301,640.10 = 123,088.70/x
  3. Step 3: Cross multiply
    218,584.05x = 301,640.10 × 123,088.70
  4. Step 4: Simplify right side
    218,584.05x = 37,128,486,268.67
  5. Step 5: Solve for x
    x = 37,128,486,268.67/218,584.05
  6. Step 6: Final answer
    x = 169,859.08

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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.