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Finding the Fourth Proportional to 325,611.40, 488,417.10 and 148,464.40

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Solution

The fourth proportional to 325,611.40, 488,417.10 and 148,464.40 is: 222,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,611.40 : 488,417.10 = 148,464.40 : x
  2. Step 2: Convert to fraction form
    325,611.40/488,417.10 = 148,464.40/x
  3. Step 3: Cross multiply
    325,611.40x = 488,417.10 × 148,464.40
  4. Step 4: Simplify right side
    325,611.40x = 72,512,551,701.24
  5. Step 5: Solve for x
    x = 72,512,551,701.24/325,611.40
  6. Step 6: Final answer
    x = 222,696.60

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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.