Home / 281,479.02-388,420.83-154,134.06

Finding the Fourth Proportional to 281,479.02, 388,420.83 and 154,134.06

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Solution

The fourth proportional to 281,479.02, 388,420.83 and 154,134.06 is: 212,693.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,479.02 : 388,420.83 = 154,134.06 : x
  2. Step 2: Convert to fraction form
    281,479.02/388,420.83 = 154,134.06/x
  3. Step 3: Cross multiply
    281,479.02x = 388,420.83 × 154,134.06
  4. Step 4: Simplify right side
    281,479.02x = 59,868,879,516.47
  5. Step 5: Solve for x
    x = 59,868,879,516.47/281,479.02
  6. Step 6: Final answer
    x = 212,693.93

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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.