Home / 281,719.68-388,774.63-152,658.20

Finding the Fourth Proportional to 281,719.68, 388,774.63 and 152,658.20

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Solution

The fourth proportional to 281,719.68, 388,774.63 and 152,658.20 is: 210,669.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,719.68 : 388,774.63 = 152,658.20 : x
  2. Step 2: Convert to fraction form
    281,719.68/388,774.63 = 152,658.20/x
  3. Step 3: Cross multiply
    281,719.68x = 388,774.63 × 152,658.20
  4. Step 4: Simplify right side
    281,719.68x = 59,349,633,867.88
  5. Step 5: Solve for x
    x = 59,349,633,867.88/281,719.68
  6. Step 6: Final answer
    x = 210,669.11

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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.