Home / 286,541.34-395,419.20-159,213.66

Finding the Fourth Proportional to 286,541.34, 395,419.20 and 159,213.66

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Solution

The fourth proportional to 286,541.34, 395,419.20 and 159,213.66 is: 219,710.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,541.34 : 395,419.20 = 159,213.66 : x
  2. Step 2: Convert to fraction form
    286,541.34/395,419.20 = 159,213.66/x
  3. Step 3: Cross multiply
    286,541.34x = 395,419.20 × 159,213.66
  4. Step 4: Simplify right side
    286,541.34x = 62,956,138,066.27
  5. Step 5: Solve for x
    x = 62,956,138,066.27/286,541.34
  6. Step 6: Final answer
    x = 219,710.49

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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.