Home / 380,419.80-524,995.14-210,653.92

Finding the Fourth Proportional to 380,419.80, 524,995.14 and 210,653.92

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Solution

The fourth proportional to 380,419.80, 524,995.14 and 210,653.92 is: 290,711.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,419.80 : 524,995.14 = 210,653.92 : x
  2. Step 2: Convert to fraction form
    380,419.80/524,995.14 = 210,653.92/x
  3. Step 3: Cross multiply
    380,419.80x = 524,995.14 × 210,653.92
  4. Step 4: Simplify right side
    380,419.80x = 110,592,284,221.95
  5. Step 5: Solve for x
    x = 110,592,284,221.95/380,419.80
  6. Step 6: Final answer
    x = 290,711.17

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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.