Home / 281,680.74-388,681.38-160,814.34

Finding the Fourth Proportional to 281,680.74, 388,681.38 and 160,814.34

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Solution

The fourth proportional to 281,680.74, 388,681.38 and 160,814.34 is: 221,902.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,680.74 : 388,681.38 = 160,814.34 : x
  2. Step 2: Convert to fraction form
    281,680.74/388,681.38 = 160,814.34/x
  3. Step 3: Cross multiply
    281,680.74x = 388,681.38 × 160,814.34
  4. Step 4: Simplify right side
    281,680.74x = 62,505,539,594.99
  5. Step 5: Solve for x
    x = 62,505,539,594.99/281,680.74
  6. Step 6: Final answer
    x = 221,902.07

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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.