Home / 281,369.24-388,253.40-160,503.32

Finding the Fourth Proportional to 281,369.24, 388,253.40 and 160,503.32

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Solution

The fourth proportional to 281,369.24, 388,253.40 and 160,503.32 is: 221,473.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,369.24 : 388,253.40 = 160,503.32 : x
  2. Step 2: Convert to fraction form
    281,369.24/388,253.40 = 160,503.32/x
  3. Step 3: Cross multiply
    281,369.24x = 388,253.40 × 160,503.32
  4. Step 4: Simplify right side
    281,369.24x = 62,315,960,972.87
  5. Step 5: Solve for x
    x = 62,315,960,972.87/281,369.24
  6. Step 6: Final answer
    x = 221,473.96

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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.