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Finding the Fourth Proportional to 384,803.70, 577,205.55 and 243,086.10

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Solution

The fourth proportional to 384,803.70, 577,205.55 and 243,086.10 is: 364,629.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,803.70 : 577,205.55 = 243,086.10 : x
  2. Step 2: Convert to fraction form
    384,803.70/577,205.55 = 243,086.10/x
  3. Step 3: Cross multiply
    384,803.70x = 577,205.55 × 243,086.10
  4. Step 4: Simplify right side
    384,803.70x = 140,310,646,047.86
  5. Step 5: Solve for x
    x = 140,310,646,047.86/384,803.70
  6. Step 6: Final answer
    x = 364,629.15

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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.