Home / 281,267.46-388,155.48-153,943.38

Finding the Fourth Proportional to 281,267.46, 388,155.48 and 153,943.38

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Solution

The fourth proportional to 281,267.46, 388,155.48 and 153,943.38 is: 212,445.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,267.46 : 388,155.48 = 153,943.38 : x
  2. Step 2: Convert to fraction form
    281,267.46/388,155.48 = 153,943.38/x
  3. Step 3: Cross multiply
    281,267.46x = 388,155.48 × 153,943.38
  4. Step 4: Simplify right side
    281,267.46x = 59,753,966,556.72
  5. Step 5: Solve for x
    x = 59,753,966,556.72/281,267.46
  6. Step 6: Final answer
    x = 212,445.36

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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.