Home / 380,239.20-524,742.48-219,081.76

Finding the Fourth Proportional to 380,239.20, 524,742.48 and 219,081.76

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Solution

The fourth proportional to 380,239.20, 524,742.48 and 219,081.76 is: 302,339.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,239.20 : 524,742.48 = 219,081.76 : x
  2. Step 2: Convert to fraction form
    380,239.20/524,742.48 = 219,081.76/x
  3. Step 3: Cross multiply
    380,239.20x = 524,742.48 × 219,081.76
  4. Step 4: Simplify right side
    380,239.20x = 114,961,506,065.17
  5. Step 5: Solve for x
    x = 114,961,506,065.17/380,239.20
  6. Step 6: Final answer
    x = 302,339.96

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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.