Home / 279,155.03-385,231.05-151,830.59

Finding the Fourth Proportional to 279,155.03, 385,231.05 and 151,830.59

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Solution

The fourth proportional to 279,155.03, 385,231.05 and 151,830.59 is: 209,524.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,155.03 : 385,231.05 = 151,830.59 : x
  2. Step 2: Convert to fraction form
    279,155.03/385,231.05 = 151,830.59/x
  3. Step 3: Cross multiply
    279,155.03x = 385,231.05 × 151,830.59
  4. Step 4: Simplify right side
    279,155.03x = 58,489,855,681.66
  5. Step 5: Solve for x
    x = 58,489,855,681.66/279,155.03
  6. Step 6: Final answer
    x = 209,524.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.