Home / 380,170.32-570,382.15-127,475.79

Finding the Fourth Proportional to 380,170.32, 570,382.15 and 127,475.79

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Solution

The fourth proportional to 380,170.32, 570,382.15 and 127,475.79 is: 191,256.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,170.32 : 570,382.15 = 127,475.79 : x
  2. Step 2: Convert to fraction form
    380,170.32/570,382.15 = 127,475.79/x
  3. Step 3: Cross multiply
    380,170.32x = 570,382.15 × 127,475.79
  4. Step 4: Simplify right side
    380,170.32x = 72,709,915,173.15
  5. Step 5: Solve for x
    x = 72,709,915,173.15/380,170.32
  6. Step 6: Final answer
    x = 191,256.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.