Home / 643,228.68-964,162.08-216,358.14

Finding the Fourth Proportional to 643,228.68, 964,162.08 and 216,358.14

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Solution

The fourth proportional to 643,228.68, 964,162.08 and 216,358.14 is: 324,308.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,228.68 : 964,162.08 = 216,358.14 : x
  2. Step 2: Convert to fraction form
    643,228.68/964,162.08 = 216,358.14/x
  3. Step 3: Cross multiply
    643,228.68x = 964,162.08 × 216,358.14
  4. Step 4: Simplify right side
    643,228.68x = 208,604,314,287.33
  5. Step 5: Solve for x
    x = 208,604,314,287.33/643,228.68
  6. Step 6: Final answer
    x = 324,308.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.