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Finding the Fourth Proportional to 300,509.76, 450,852.48 and 90,179.04

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Solution

The fourth proportional to 300,509.76, 450,852.48 and 90,179.04 is: 135,294.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,509.76 : 450,852.48 = 90,179.04 : x
  2. Step 2: Convert to fraction form
    300,509.76/450,852.48 = 90,179.04/x
  3. Step 3: Cross multiply
    300,509.76x = 450,852.48 × 90,179.04
  4. Step 4: Simplify right side
    300,509.76x = 40,657,443,828.02
  5. Step 5: Solve for x
    x = 40,657,443,828.02/300,509.76
  6. Step 6: Final answer
    x = 135,294.92

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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.