Home / 287,124.75-430,884.36-100,136.25

Finding the Fourth Proportional to 287,124.75, 430,884.36 and 100,136.25

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Solution

The fourth proportional to 287,124.75, 430,884.36 and 100,136.25 is: 150,273.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,124.75 : 430,884.36 = 100,136.25 : x
  2. Step 2: Convert to fraction form
    287,124.75/430,884.36 = 100,136.25/x
  3. Step 3: Cross multiply
    287,124.75x = 430,884.36 × 100,136.25
  4. Step 4: Simplify right side
    287,124.75x = 43,147,143,994.05
  5. Step 5: Solve for x
    x = 43,147,143,994.05/287,124.75
  6. Step 6: Final answer
    x = 150,273.16

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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.