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Finding the Fourth Proportional to 366,912.55, 550,368.83 and 260,624.35

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Solution

The fourth proportional to 366,912.55, 550,368.83 and 260,624.35 is: 390,936.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,912.55 : 550,368.83 = 260,624.35 : x
  2. Step 2: Convert to fraction form
    366,912.55/550,368.83 = 260,624.35/x
  3. Step 3: Cross multiply
    366,912.55x = 550,368.83 × 260,624.35
  4. Step 4: Simplify right side
    366,912.55x = 143,439,518,579.01
  5. Step 5: Solve for x
    x = 143,439,518,579.01/366,912.55
  6. Step 6: Final answer
    x = 390,936.53

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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.