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Finding the Fourth Proportional to 309,423.63, 427,004.60 and 175,287.63

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Solution

The fourth proportional to 309,423.63, 427,004.60 and 175,287.63 is: 241,896.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,423.63 : 427,004.60 = 175,287.63 : x
  2. Step 2: Convert to fraction form
    309,423.63/427,004.60 = 175,287.63/x
  3. Step 3: Cross multiply
    309,423.63x = 427,004.60 × 175,287.63
  4. Step 4: Simplify right side
    309,423.63x = 74,848,624,333.10
  5. Step 5: Solve for x
    x = 74,848,624,333.10/309,423.63
  6. Step 6: Final answer
    x = 241,896.92

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1.5x scale

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.