Home / 380,612.36-525,247.07-215,041.07

Finding the Fourth Proportional to 380,612.36, 525,247.07 and 215,041.07

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Solution

The fourth proportional to 380,612.36, 525,247.07 and 215,041.07 is: 296,757.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,612.36 : 525,247.07 = 215,041.07 : x
  2. Step 2: Convert to fraction form
    380,612.36/525,247.07 = 215,041.07/x
  3. Step 3: Cross multiply
    380,612.36x = 525,247.07 × 215,041.07
  4. Step 4: Simplify right side
    380,612.36x = 112,949,692,185.08
  5. Step 5: Solve for x
    x = 112,949,692,185.08/380,612.36
  6. Step 6: Final answer
    x = 296,757.81

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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.