Home / 285,984.40-429,322.20-159,725.20

Finding the Fourth Proportional to 285,984.40, 429,322.20 and 159,725.20

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Solution

The fourth proportional to 285,984.40, 429,322.20 and 159,725.20 is: 239,780.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,984.40 : 429,322.20 = 159,725.20 : x
  2. Step 2: Convert to fraction form
    285,984.40/429,322.20 = 159,725.20/x
  3. Step 3: Cross multiply
    285,984.40x = 429,322.20 × 159,725.20
  4. Step 4: Simplify right side
    285,984.40x = 68,573,574,259.44
  5. Step 5: Solve for x
    x = 68,573,574,259.44/285,984.40
  6. Step 6: Final answer
    x = 239,780.82

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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.