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Finding the Fourth Proportional to 380,973.44, 571,520.64 and 131,674.88

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Solution

The fourth proportional to 380,973.44, 571,520.64 and 131,674.88 is: 197,533.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,973.44 : 571,520.64 = 131,674.88 : x
  2. Step 2: Convert to fraction form
    380,973.44/571,520.64 = 131,674.88/x
  3. Step 3: Cross multiply
    380,973.44x = 571,520.64 × 131,674.88
  4. Step 4: Simplify right side
    380,973.44x = 75,254,911,689.52
  5. Step 5: Solve for x
    x = 75,254,911,689.52/380,973.44
  6. Step 6: Final answer
    x = 197,533.22

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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.