Home / 279,221.04-418,285.80-223,179.12

Finding the Fourth Proportional to 279,221.04, 418,285.80 and 223,179.12

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Solution

The fourth proportional to 279,221.04, 418,285.80 and 223,179.12 is: 334,332.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,221.04 : 418,285.80 = 223,179.12 : x
  2. Step 2: Convert to fraction form
    279,221.04/418,285.80 = 223,179.12/x
  3. Step 3: Cross multiply
    279,221.04x = 418,285.80 × 223,179.12
  4. Step 4: Simplify right side
    279,221.04x = 93,352,656,752.50
  5. Step 5: Solve for x
    x = 93,352,656,752.50/279,221.04
  6. Step 6: Final answer
    x = 334,332.46

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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.