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Finding the Fourth Proportional to 288,364.40, 432,546.60 and 163,948.40

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Solution

The fourth proportional to 288,364.40, 432,546.60 and 163,948.40 is: 245,922.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,364.40 : 432,546.60 = 163,948.40 : x
  2. Step 2: Convert to fraction form
    288,364.40/432,546.60 = 163,948.40/x
  3. Step 3: Cross multiply
    288,364.40x = 432,546.60 × 163,948.40
  4. Step 4: Simplify right side
    288,364.40x = 70,915,322,995.44
  5. Step 5: Solve for x
    x = 70,915,322,995.44/288,364.40
  6. Step 6: Final answer
    x = 245,922.60

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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.