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Finding the Fourth Proportional to 284,806.40, 427,516.80 and 160,390.40

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Solution

The fourth proportional to 284,806.40, 427,516.80 and 160,390.40 is: 240,758.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,806.40 : 427,516.80 = 160,390.40 : x
  2. Step 2: Convert to fraction form
    284,806.40/427,516.80 = 160,390.40/x
  3. Step 3: Cross multiply
    284,806.40x = 427,516.80 × 160,390.40
  4. Step 4: Simplify right side
    284,806.40x = 68,569,590,558.72
  5. Step 5: Solve for x
    x = 68,569,590,558.72/284,806.40
  6. Step 6: Final answer
    x = 240,758.60

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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.