Home / 282,143.34-389,356.74-154,821.06

Finding the Fourth Proportional to 282,143.34, 389,356.74 and 154,821.06

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Solution

The fourth proportional to 282,143.34, 389,356.74 and 154,821.06 is: 213,652.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,143.34 : 389,356.74 = 154,821.06 : x
  2. Step 2: Convert to fraction form
    282,143.34/389,356.74 = 154,821.06/x
  3. Step 3: Cross multiply
    282,143.34x = 389,356.74 × 154,821.06
  4. Step 4: Simplify right side
    282,143.34x = 60,280,623,204.94
  5. Step 5: Solve for x
    x = 60,280,623,204.94/282,143.34
  6. Step 6: Final answer
    x = 213,652.48

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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.