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Finding the Fourth Proportional to 284,830.80, 427,499.64 and 151,820.88

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Solution

The fourth proportional to 284,830.80, 427,499.64 and 151,820.88 is: 227,866.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,830.80 : 427,499.64 = 151,820.88 : x
  2. Step 2: Convert to fraction form
    284,830.80/427,499.64 = 151,820.88/x
  3. Step 3: Cross multiply
    284,830.80x = 427,499.64 × 151,820.88
  4. Step 4: Simplify right side
    284,830.80x = 64,903,371,544.48
  5. Step 5: Solve for x
    x = 64,903,371,544.48/284,830.80
  6. Step 6: Final answer
    x = 227,866.41

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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.