Home / 281,742.08-388,809.26-154,416.76

Finding the Fourth Proportional to 281,742.08, 388,809.26 and 154,416.76

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Solution

The fourth proportional to 281,742.08, 388,809.26 and 154,416.76 is: 213,097.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,742.08 : 388,809.26 = 154,416.76 : x
  2. Step 2: Convert to fraction form
    281,742.08/388,809.26 = 154,416.76/x
  3. Step 3: Cross multiply
    281,742.08x = 388,809.26 × 154,416.76
  4. Step 4: Simplify right side
    281,742.08x = 60,038,666,187.20
  5. Step 5: Solve for x
    x = 60,038,666,187.20/281,742.08
  6. Step 6: Final answer
    x = 213,097.97

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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.