Home / 386,136.60-579,282.06-133,426.20

Finding the Fourth Proportional to 386,136.60, 579,282.06 and 133,426.20

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Solution

The fourth proportional to 386,136.60, 579,282.06 and 133,426.20 is: 200,165.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,136.60 : 579,282.06 = 133,426.20 : x
  2. Step 2: Convert to fraction form
    386,136.60/579,282.06 = 133,426.20/x
  3. Step 3: Cross multiply
    386,136.60x = 579,282.06 × 133,426.20
  4. Step 4: Simplify right side
    386,136.60x = 77,291,403,993.97
  5. Step 5: Solve for x
    x = 77,291,403,993.97/386,136.60
  6. Step 6: Final answer
    x = 200,165.96

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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.