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Finding the Fourth Proportional to 384,807.08, 531,024.58 and 215,074.02

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Solution

The fourth proportional to 384,807.08, 531,024.58 and 215,074.02 is: 296,797.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,807.08 : 531,024.58 = 215,074.02 : x
  2. Step 2: Convert to fraction form
    384,807.08/531,024.58 = 215,074.02/x
  3. Step 3: Cross multiply
    384,807.08x = 531,024.58 × 215,074.02
  4. Step 4: Simplify right side
    384,807.08x = 114,209,591,139.41
  5. Step 5: Solve for x
    x = 114,209,591,139.41/384,807.08
  6. Step 6: Final answer
    x = 296,797.01

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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.