Home / 380,316.08-524,796.36-219,139.04

Finding the Fourth Proportional to 380,316.08, 524,796.36 and 219,139.04

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Solution

The fourth proportional to 380,316.08, 524,796.36 and 219,139.04 is: 302,388.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,316.08 : 524,796.36 = 219,139.04 : x
  2. Step 2: Convert to fraction form
    380,316.08/524,796.36 = 219,139.04/x
  3. Step 3: Cross multiply
    380,316.08x = 524,796.36 × 219,139.04
  4. Step 4: Simplify right side
    380,316.08x = 115,003,370,525.89
  5. Step 5: Solve for x
    x = 115,003,370,525.89/380,316.08
  6. Step 6: Final answer
    x = 302,388.92

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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.