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Finding the Fourth Proportional to 300,585.19, 450,907.34 and 87,354.95

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Solution

The fourth proportional to 300,585.19, 450,907.34 and 87,354.95 is: 131,041.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,585.19 : 450,907.34 = 87,354.95 : x
  2. Step 2: Convert to fraction form
    300,585.19/450,907.34 = 87,354.95/x
  3. Step 3: Cross multiply
    300,585.19x = 450,907.34 × 87,354.95
  4. Step 4: Simplify right side
    300,585.19x = 39,388,988,140.33
  5. Step 5: Solve for x
    x = 39,388,988,140.33/300,585.19
  6. Step 6: Final answer
    x = 131,041.01

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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.