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Finding the Fourth Proportional to 277,745.60, 416,618.40 and 260,249.60

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Solution

The fourth proportional to 277,745.60, 416,618.40 and 260,249.60 is: 390,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,745.60 : 416,618.40 = 260,249.60 : x
  2. Step 2: Convert to fraction form
    277,745.60/416,618.40 = 260,249.60/x
  3. Step 3: Cross multiply
    277,745.60x = 416,618.40 × 260,249.60
  4. Step 4: Simplify right side
    277,745.60x = 108,424,771,952.64
  5. Step 5: Solve for x
    x = 108,424,771,952.64/277,745.60
  6. Step 6: Final answer
    x = 390,374.40

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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.