Home / 281,423.23-388,361.33-152,358.40

Finding the Fourth Proportional to 281,423.23, 388,361.33 and 152,358.40

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Solution

The fourth proportional to 281,423.23, 388,361.33 and 152,358.40 is: 210,253.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,423.23 : 388,361.33 = 152,358.40 : x
  2. Step 2: Convert to fraction form
    281,423.23/388,361.33 = 152,358.40/x
  3. Step 3: Cross multiply
    281,423.23x = 388,361.33 × 152,358.40
  4. Step 4: Simplify right side
    281,423.23x = 59,170,112,012.69
  5. Step 5: Solve for x
    x = 59,170,112,012.69/281,423.23
  6. Step 6: Final answer
    x = 210,253.12

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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.