Home / 384,718.45-577,089.38-131,995.40

Finding the Fourth Proportional to 384,718.45, 577,089.38 and 131,995.40

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Solution

The fourth proportional to 384,718.45, 577,089.38 and 131,995.40 is: 197,997.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,718.45 : 577,089.38 = 131,995.40 : x
  2. Step 2: Convert to fraction form
    384,718.45/577,089.38 = 131,995.40/x
  3. Step 3: Cross multiply
    384,718.45x = 577,089.38 × 131,995.40
  4. Step 4: Simplify right side
    384,718.45x = 76,173,143,548.85
  5. Step 5: Solve for x
    x = 76,173,143,548.85/384,718.45
  6. Step 6: Final answer
    x = 197,997.12

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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.