Home / 281,419.15-388,359.06-152,358.98

Finding the Fourth Proportional to 281,419.15, 388,359.06 and 152,358.98

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Solution

The fourth proportional to 281,419.15, 388,359.06 and 152,358.98 is: 210,255.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,419.15 : 388,359.06 = 152,358.98 : x
  2. Step 2: Convert to fraction form
    281,419.15/388,359.06 = 152,358.98/x
  3. Step 3: Cross multiply
    281,419.15x = 388,359.06 × 152,358.98
  4. Step 4: Simplify right side
    281,419.15x = 59,169,990,255.36
  5. Step 5: Solve for x
    x = 59,169,990,255.36/281,419.15
  6. Step 6: Final answer
    x = 210,255.74

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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.