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Finding the Fourth Proportional to 360,140.84, 540,052.12 and 191,621.22

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Solution

The fourth proportional to 360,140.84, 540,052.12 and 191,621.22 is: 287,347.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,140.84 : 540,052.12 = 191,621.22 : x
  2. Step 2: Convert to fraction form
    360,140.84/540,052.12 = 191,621.22/x
  3. Step 3: Cross multiply
    360,140.84x = 540,052.12 × 191,621.22
  4. Step 4: Simplify right side
    360,140.84x = 103,485,446,097.99
  5. Step 5: Solve for x
    x = 103,485,446,097.99/360,140.84
  6. Step 6: Final answer
    x = 287,347.16

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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.