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Finding the Fourth Proportional to 449,848.80, 675,064.80 and 260,308.80

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Solution

The fourth proportional to 449,848.80, 675,064.80 and 260,308.80 is: 390,631.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,848.80 : 675,064.80 = 260,308.80 : x
  2. Step 2: Convert to fraction form
    449,848.80/675,064.80 = 260,308.80/x
  3. Step 3: Cross multiply
    449,848.80x = 675,064.80 × 260,308.80
  4. Step 4: Simplify right side
    449,848.80x = 175,725,308,010.24
  5. Step 5: Solve for x
    x = 175,725,308,010.24/449,848.80
  6. Step 6: Final answer
    x = 390,631.94

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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.