Home / 282,256.30-389,518.11-154,943.50

Finding the Fourth Proportional to 282,256.30, 389,518.11 and 154,943.50

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Solution

The fourth proportional to 282,256.30, 389,518.11 and 154,943.50 is: 213,824.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,256.30 : 389,518.11 = 154,943.50 : x
  2. Step 2: Convert to fraction form
    282,256.30/389,518.11 = 154,943.50/x
  3. Step 3: Cross multiply
    282,256.30x = 389,518.11 × 154,943.50
  4. Step 4: Simplify right side
    282,256.30x = 60,353,299,276.79
  5. Step 5: Solve for x
    x = 60,353,299,276.79/282,256.30
  6. Step 6: Final answer
    x = 213,824.45

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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.