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Finding the Fourth Proportional to 309,026.76, 462,756.06 and 258,975.24

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Solution

The fourth proportional to 309,026.76, 462,756.06 and 258,975.24 is: 387,805.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,026.76 : 462,756.06 = 258,975.24 : x
  2. Step 2: Convert to fraction form
    309,026.76/462,756.06 = 258,975.24/x
  3. Step 3: Cross multiply
    309,026.76x = 462,756.06 × 258,975.24
  4. Step 4: Simplify right side
    309,026.76x = 119,842,361,699.95
  5. Step 5: Solve for x
    x = 119,842,361,699.95/309,026.76
  6. Step 6: Final answer
    x = 387,805.77

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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.