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Finding the Fourth Proportional to 155,509.50, 214,629.03 and 117,718.14

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Solution

The fourth proportional to 155,509.50, 214,629.03 and 117,718.14 is: 162,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,509.50 : 214,629.03 = 117,718.14 : x
  2. Step 2: Convert to fraction form
    155,509.50/214,629.03 = 117,718.14/x
  3. Step 3: Cross multiply
    155,509.50x = 214,629.03 × 117,718.14
  4. Step 4: Simplify right side
    155,509.50x = 25,265,730,201.60
  5. Step 5: Solve for x
    x = 25,265,730,201.60/155,509.50
  6. Step 6: Final answer
    x = 162,470.65

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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.