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Finding the Fourth Proportional to 284,656.59, 392,819.25 and 155,589.27

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Solution

The fourth proportional to 284,656.59, 392,819.25 and 155,589.27 is: 214,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,656.59 : 392,819.25 = 155,589.27 : x
  2. Step 2: Convert to fraction form
    284,656.59/392,819.25 = 155,589.27/x
  3. Step 3: Cross multiply
    284,656.59x = 392,819.25 × 155,589.27
  4. Step 4: Simplify right side
    284,656.59x = 61,118,460,349.45
  5. Step 5: Solve for x
    x = 61,118,460,349.45/284,656.59
  6. Step 6: Final answer
    x = 214,709.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.