Home / 379,428.60-569,175.30-130,110.60

Finding the Fourth Proportional to 379,428.60, 569,175.30 and 130,110.60

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Solution

The fourth proportional to 379,428.60, 569,175.30 and 130,110.60 is: 195,177.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,428.60 : 569,175.30 = 130,110.60 : x
  2. Step 2: Convert to fraction form
    379,428.60/569,175.30 = 130,110.60/x
  3. Step 3: Cross multiply
    379,428.60x = 569,175.30 × 130,110.60
  4. Step 4: Simplify right side
    379,428.60x = 74,055,739,788.18
  5. Step 5: Solve for x
    x = 74,055,739,788.18/379,428.60
  6. Step 6: Final answer
    x = 195,177.01

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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.