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Finding the Fourth Proportional to 154,963.60, 232,445.40 and 42,643.60

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Solution

The fourth proportional to 154,963.60, 232,445.40 and 42,643.60 is: 63,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,963.60 : 232,445.40 = 42,643.60 : x
  2. Step 2: Convert to fraction form
    154,963.60/232,445.40 = 42,643.60/x
  3. Step 3: Cross multiply
    154,963.60x = 232,445.40 × 42,643.60
  4. Step 4: Simplify right side
    154,963.60x = 9,912,308,659.44
  5. Step 5: Solve for x
    x = 9,912,308,659.44/154,963.60
  6. Step 6: Final answer
    x = 63,965.40

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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.