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Finding the Fourth Proportional to 379,430.60, 569,178.30 and 130,112.60

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Solution

The fourth proportional to 379,430.60, 569,178.30 and 130,112.60 is: 195,180.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,430.60 : 569,178.30 = 130,112.60 : x
  2. Step 2: Convert to fraction form
    379,430.60/569,178.30 = 130,112.60/x
  3. Step 3: Cross multiply
    379,430.60x = 569,178.30 × 130,112.60
  4. Step 4: Simplify right side
    379,430.60x = 74,057,268,476.58
  5. Step 5: Solve for x
    x = 74,057,268,476.58/379,430.60
  6. Step 6: Final answer
    x = 195,180.01

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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.