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Finding the Fourth Proportional to 302,499.60, 453,749.40 and 231,640.80

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Solution

The fourth proportional to 302,499.60, 453,749.40 and 231,640.80 is: 347,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,499.60 : 453,749.40 = 231,640.80 : x
  2. Step 2: Convert to fraction form
    302,499.60/453,749.40 = 231,640.80/x
  3. Step 3: Cross multiply
    302,499.60x = 453,749.40 × 231,640.80
  4. Step 4: Simplify right side
    302,499.60x = 105,106,874,015.52
  5. Step 5: Solve for x
    x = 105,106,874,015.52/302,499.60
  6. Step 6: Final answer
    x = 347,461.20

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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.