Home / 282,023.50-389,192.43-154,699.40

Finding the Fourth Proportional to 282,023.50, 389,192.43 and 154,699.40

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Solution

The fourth proportional to 282,023.50, 389,192.43 and 154,699.40 is: 213,485.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,023.50 : 389,192.43 = 154,699.40 : x
  2. Step 2: Convert to fraction form
    282,023.50/389,192.43 = 154,699.40/x
  3. Step 3: Cross multiply
    282,023.50x = 389,192.43 × 154,699.40
  4. Step 4: Simplify right side
    282,023.50x = 60,207,834,432.56
  5. Step 5: Solve for x
    x = 60,207,834,432.56/282,023.50
  6. Step 6: Final answer
    x = 213,485.17

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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.