Home / 380,516.08-525,110.88-219,370.36

Finding the Fourth Proportional to 380,516.08, 525,110.88 and 219,370.36

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Solution

The fourth proportional to 380,516.08, 525,110.88 and 219,370.36 is: 302,730.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,516.08 : 525,110.88 = 219,370.36 : x
  2. Step 2: Convert to fraction form
    380,516.08/525,110.88 = 219,370.36/x
  3. Step 3: Cross multiply
    380,516.08x = 525,110.88 × 219,370.36
  4. Step 4: Simplify right side
    380,516.08x = 115,193,762,785.52
  5. Step 5: Solve for x
    x = 115,193,762,785.52/380,516.08
  6. Step 6: Final answer
    x = 302,730.34

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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.