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Finding the Fourth Proportional to 360,036.84, 540,131.81 and 123,315.96

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Solution

The fourth proportional to 360,036.84, 540,131.81 and 123,315.96 is: 185,000.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,036.84 : 540,131.81 = 123,315.96 : x
  2. Step 2: Convert to fraction form
    360,036.84/540,131.81 = 123,315.96/x
  3. Step 3: Cross multiply
    360,036.84x = 540,131.81 × 123,315.96
  4. Step 4: Simplify right side
    360,036.84x = 66,606,872,060.11
  5. Step 5: Solve for x
    x = 66,606,872,060.11/360,036.84
  6. Step 6: Final answer
    x = 185,000.16

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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.