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Finding the Fourth Proportional to 475,000.40, 712,903.80 and 194,718.80

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Solution

The fourth proportional to 475,000.40, 712,903.80 and 194,718.80 is: 292,243.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,000.40 : 712,903.80 = 194,718.80 : x
  2. Step 2: Convert to fraction form
    475,000.40/712,903.80 = 194,718.80/x
  3. Step 3: Cross multiply
    475,000.40x = 712,903.80 × 194,718.80
  4. Step 4: Simplify right side
    475,000.40x = 138,815,772,451.44
  5. Step 5: Solve for x
    x = 138,815,772,451.44/475,000.40
  6. Step 6: Final answer
    x = 292,243.49

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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.