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Finding the Fourth Proportional to 199,426.90, 299,140.35 and 133,071.70

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Solution

The fourth proportional to 199,426.90, 299,140.35 and 133,071.70 is: 199,607.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,426.90 : 299,140.35 = 133,071.70 : x
  2. Step 2: Convert to fraction form
    199,426.90/299,140.35 = 133,071.70/x
  3. Step 3: Cross multiply
    199,426.90x = 299,140.35 × 133,071.70
  4. Step 4: Simplify right side
    199,426.90x = 39,807,114,913.10
  5. Step 5: Solve for x
    x = 39,807,114,913.10/199,426.90
  6. Step 6: Final answer
    x = 199,607.55

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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.