Home / 281,451.51-388,439.96-160,564.95

Finding the Fourth Proportional to 281,451.51, 388,439.96 and 160,564.95

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Solution

The fourth proportional to 281,451.51, 388,439.96 and 160,564.95 is: 221,600.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,451.51 : 388,439.96 = 160,564.95 : x
  2. Step 2: Convert to fraction form
    281,451.51/388,439.96 = 160,564.95/x
  3. Step 3: Cross multiply
    281,451.51x = 388,439.96 × 160,564.95
  4. Step 4: Simplify right side
    281,451.51x = 62,369,841,952.58
  5. Step 5: Solve for x
    x = 62,369,841,952.58/281,451.51
  6. Step 6: Final answer
    x = 221,600.67

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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.