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Finding the Fourth Proportional to 262,579.89, 362,358.40 and 143,347.89

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Solution

The fourth proportional to 262,579.89, 362,358.40 and 143,347.89 is: 197,819.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,579.89 : 362,358.40 = 143,347.89 : x
  2. Step 2: Convert to fraction form
    262,579.89/362,358.40 = 143,347.89/x
  3. Step 3: Cross multiply
    262,579.89x = 362,358.40 × 143,347.89
  4. Step 4: Simplify right side
    262,579.89x = 51,943,312,063.78
  5. Step 5: Solve for x
    x = 51,943,312,063.78/262,579.89
  6. Step 6: Final answer
    x = 197,819.08

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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.