Home / 281,016.04-387,346.98-219,655.30

Finding the Fourth Proportional to 281,016.04, 387,346.98 and 219,655.30

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Solution

The fourth proportional to 281,016.04, 387,346.98 and 219,655.30 is: 302,768.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,016.04 : 387,346.98 = 219,655.30 : x
  2. Step 2: Convert to fraction form
    281,016.04/387,346.98 = 219,655.30/x
  3. Step 3: Cross multiply
    281,016.04x = 387,346.98 × 219,655.30
  4. Step 4: Simplify right side
    281,016.04x = 85,082,817,095.99
  5. Step 5: Solve for x
    x = 85,082,817,095.99/281,016.04
  6. Step 6: Final answer
    x = 302,768.54

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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.