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Finding the Fourth Proportional to 249,247.89, 343,960.34 and 136,070.64

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Solution

The fourth proportional to 249,247.89, 343,960.34 and 136,070.64 is: 187,776.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,247.89 : 343,960.34 = 136,070.64 : x
  2. Step 2: Convert to fraction form
    249,247.89/343,960.34 = 136,070.64/x
  3. Step 3: Cross multiply
    249,247.89x = 343,960.34 × 136,070.64
  4. Step 4: Simplify right side
    249,247.89x = 46,802,902,918.06
  5. Step 5: Solve for x
    x = 46,802,902,918.06/249,247.89
  6. Step 6: Final answer
    x = 187,776.53

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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.