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Finding the Fourth Proportional to 424,647, 637,068.92 and 144,164.26

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Solution

The fourth proportional to 424,647, 637,068.92 and 144,164.26 is: 216,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,647 : 637,068.92 = 144,164.26 : x
  2. Step 2: Convert to fraction form
    424,647/637,068.92 = 144,164.26/x
  3. Step 3: Cross multiply
    424,647x = 637,068.92 × 144,164.26
  4. Step 4: Simplify right side
    424,647x = 91,842,569,420.80
  5. Step 5: Solve for x
    x = 91,842,569,420.80/424,647
  6. Step 6: Final answer
    x = 216,279.80

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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.