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Finding the Fourth Proportional to 360,178.95, 539,892.99 and 135,384.51

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Solution

The fourth proportional to 360,178.95, 539,892.99 and 135,384.51 is: 202,935.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,178.95 : 539,892.99 = 135,384.51 : x
  2. Step 2: Convert to fraction form
    360,178.95/539,892.99 = 135,384.51/x
  3. Step 3: Cross multiply
    360,178.95x = 539,892.99 × 135,384.51
  4. Step 4: Simplify right side
    360,178.95x = 73,093,147,903.58
  5. Step 5: Solve for x
    x = 73,093,147,903.58/360,178.95
  6. Step 6: Final answer
    x = 202,935.65

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1.5x scale

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.