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Finding the Fourth Proportional to 249,093.57, 343,756.70 and 141,679.05

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Solution

The fourth proportional to 249,093.57, 343,756.70 and 141,679.05 is: 195,521.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,093.57 : 343,756.70 = 141,679.05 : x
  2. Step 2: Convert to fraction form
    249,093.57/343,756.70 = 141,679.05/x
  3. Step 3: Cross multiply
    249,093.57x = 343,756.70 × 141,679.05
  4. Step 4: Simplify right side
    249,093.57x = 48,703,121,978.74
  5. Step 5: Solve for x
    x = 48,703,121,978.74/249,093.57
  6. Step 6: Final answer
    x = 195,521.39

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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.