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Finding the Fourth Proportional to 303,965.40, 456,077.70 and 146,112.60

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Solution

The fourth proportional to 303,965.40, 456,077.70 and 146,112.60 is: 219,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,965.40 : 456,077.70 = 146,112.60 : x
  2. Step 2: Convert to fraction form
    303,965.40/456,077.70 = 146,112.60/x
  3. Step 3: Cross multiply
    303,965.40x = 456,077.70 × 146,112.60
  4. Step 4: Simplify right side
    303,965.40x = 66,638,698,549.02
  5. Step 5: Solve for x
    x = 66,638,698,549.02/303,965.40
  6. Step 6: Final answer
    x = 219,231.20

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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.