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Finding the Fourth Proportional to 155,434.07, 214,499.05 and 88,366.07

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Solution

The fourth proportional to 155,434.07, 214,499.05 and 88,366.07 is: 121,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,434.07 : 214,499.05 = 88,366.07 : x
  2. Step 2: Convert to fraction form
    155,434.07/214,499.05 = 88,366.07/x
  3. Step 3: Cross multiply
    155,434.07x = 214,499.05 × 88,366.07
  4. Step 4: Simplify right side
    155,434.07x = 18,954,438,382.57
  5. Step 5: Solve for x
    x = 18,954,438,382.57/155,434.07
  6. Step 6: Final answer
    x = 121,945.20

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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.