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Finding the Fourth Proportional to 290,136.84, 435,106.68 and 100,553.04

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Solution

The fourth proportional to 290,136.84, 435,106.68 and 100,553.04 is: 150,795.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,136.84 : 435,106.68 = 100,553.04 : x
  2. Step 2: Convert to fraction form
    290,136.84/435,106.68 = 100,553.04/x
  3. Step 3: Cross multiply
    290,136.84x = 435,106.68 × 100,553.04
  4. Step 4: Simplify right side
    290,136.84x = 43,751,299,398.31
  5. Step 5: Solve for x
    x = 43,751,299,398.31/290,136.84
  6. Step 6: Final answer
    x = 150,795.40

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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.