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Finding the Fourth Proportional to 389,800, 584,700.02 and 94,312

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Solution

The fourth proportional to 389,800, 584,700.02 and 94,312 is: 141,468.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,800 : 584,700.02 = 94,312 : x
  2. Step 2: Convert to fraction form
    389,800/584,700.02 = 94,312/x
  3. Step 3: Cross multiply
    389,800x = 584,700.02 × 94,312
  4. Step 4: Simplify right side
    389,800x = 55,144,228,286.24
  5. Step 5: Solve for x
    x = 55,144,228,286.24/389,800
  6. Step 6: Final answer
    x = 141,468.00

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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.