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Finding the Fourth Proportional to 240,627.16, 360,816.16 and 128,277.20

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Solution

The fourth proportional to 240,627.16, 360,816.16 and 128,277.20 is: 192,349.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,627.16 : 360,816.16 = 128,277.20 : x
  2. Step 2: Convert to fraction form
    240,627.16/360,816.16 = 128,277.20/x
  3. Step 3: Cross multiply
    240,627.16x = 360,816.16 × 128,277.20
  4. Step 4: Simplify right side
    240,627.16x = 46,284,486,719.55
  5. Step 5: Solve for x
    x = 46,284,486,719.55/240,627.16
  6. Step 6: Final answer
    x = 192,349.39

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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.