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Finding the Fourth Proportional to 424,636.25, 636,875.24 and 136,452.89

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Solution

The fourth proportional to 424,636.25, 636,875.24 and 136,452.89 is: 204,653.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,636.25 : 636,875.24 = 136,452.89 : x
  2. Step 2: Convert to fraction form
    424,636.25/636,875.24 = 136,452.89/x
  3. Step 3: Cross multiply
    424,636.25x = 636,875.24 × 136,452.89
  4. Step 4: Simplify right side
    424,636.25x = 86,903,463,883.07
  5. Step 5: Solve for x
    x = 86,903,463,883.07/424,636.25
  6. Step 6: Final answer
    x = 204,653.90

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1.5x scale

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.