Home / 380,870.39-525,601.22-211,104.52

Finding the Fourth Proportional to 380,870.39, 525,601.22 and 211,104.52

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Solution

The fourth proportional to 380,870.39, 525,601.22 and 211,104.52 is: 291,324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,870.39 : 525,601.22 = 211,104.52 : x
  2. Step 2: Convert to fraction form
    380,870.39/525,601.22 = 211,104.52/x
  3. Step 3: Cross multiply
    380,870.39x = 525,601.22 × 211,104.52
  4. Step 4: Simplify right side
    380,870.39x = 110,956,793,259.51
  5. Step 5: Solve for x
    x = 110,956,793,259.51/380,870.39
  6. Step 6: Final answer
    x = 291,324.28

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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.