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Finding the Fourth Proportional to 245,883.60, 368,825.40 and 121,208.40

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Solution

The fourth proportional to 245,883.60, 368,825.40 and 121,208.40 is: 181,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,883.60 : 368,825.40 = 121,208.40 : x
  2. Step 2: Convert to fraction form
    245,883.60/368,825.40 = 121,208.40/x
  3. Step 3: Cross multiply
    245,883.60x = 368,825.40 × 121,208.40
  4. Step 4: Simplify right side
    245,883.60x = 44,704,736,613.36
  5. Step 5: Solve for x
    x = 44,704,736,613.36/245,883.60
  6. Step 6: Final answer
    x = 181,812.60

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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.