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Finding the Fourth Proportional to 354,961.60, 532,442.40 and 325,931.20

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Solution

The fourth proportional to 354,961.60, 532,442.40 and 325,931.20 is: 488,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,961.60 : 532,442.40 = 325,931.20 : x
  2. Step 2: Convert to fraction form
    354,961.60/532,442.40 = 325,931.20/x
  3. Step 3: Cross multiply
    354,961.60x = 532,442.40 × 325,931.20
  4. Step 4: Simplify right side
    354,961.60x = 173,539,590,362.88
  5. Step 5: Solve for x
    x = 173,539,590,362.88/354,961.60
  6. Step 6: Final answer
    x = 488,896.80

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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.