Home / 282,168.90-389,397.83-154,856.34

Finding the Fourth Proportional to 282,168.90, 389,397.83 and 154,856.34

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Solution

The fourth proportional to 282,168.90, 389,397.83 and 154,856.34 is: 213,704.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,168.90 : 389,397.83 = 154,856.34 : x
  2. Step 2: Convert to fraction form
    282,168.90/389,397.83 = 154,856.34/x
  3. Step 3: Cross multiply
    282,168.90x = 389,397.83 × 154,856.34
  4. Step 4: Simplify right side
    282,168.90x = 60,300,721,983.46
  5. Step 5: Solve for x
    x = 60,300,721,983.46/282,168.90
  6. Step 6: Final answer
    x = 213,704.35

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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.