Home / 351,080.86-484,549.54-215,190.40

Finding the Fourth Proportional to 351,080.86, 484,549.54 and 215,190.40

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Solution

The fourth proportional to 351,080.86, 484,549.54 and 215,190.40 is: 296,998.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,080.86 : 484,549.54 = 215,190.40 : x
  2. Step 2: Convert to fraction form
    351,080.86/484,549.54 = 215,190.40/x
  3. Step 3: Cross multiply
    351,080.86x = 484,549.54 × 215,190.40
  4. Step 4: Simplify right side
    351,080.86x = 104,270,409,332.42
  5. Step 5: Solve for x
    x = 104,270,409,332.42/351,080.86
  6. Step 6: Final answer
    x = 296,998.27

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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.