Home / 285,239.64-393,615.70-156,153.36

Finding the Fourth Proportional to 285,239.64, 393,615.70 and 156,153.36

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Solution

The fourth proportional to 285,239.64, 393,615.70 and 156,153.36 is: 215,483.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,239.64 : 393,615.70 = 156,153.36 : x
  2. Step 2: Convert to fraction form
    285,239.64/393,615.70 = 156,153.36/x
  3. Step 3: Cross multiply
    285,239.64x = 393,615.70 × 156,153.36
  4. Step 4: Simplify right side
    285,239.64x = 61,464,414,103.75
  5. Step 5: Solve for x
    x = 61,464,414,103.75/285,239.64
  6. Step 6: Final answer
    x = 215,483.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.