Home / 389,380.04-537,362.74-219,610.76

Finding the Fourth Proportional to 389,380.04, 537,362.74 and 219,610.76

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Solution

The fourth proportional to 389,380.04, 537,362.74 and 219,610.76 is: 303,073.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,380.04 : 537,362.74 = 219,610.76 : x
  2. Step 2: Convert to fraction form
    389,380.04/537,362.74 = 219,610.76/x
  3. Step 3: Cross multiply
    389,380.04x = 537,362.74 × 219,610.76
  4. Step 4: Simplify right side
    389,380.04x = 118,010,639,727.08
  5. Step 5: Solve for x
    x = 118,010,639,727.08/389,380.04
  6. Step 6: Final answer
    x = 303,073.16

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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.