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Finding the Fourth Proportional to 302,576.40, 453,864.60 and 145,112.40

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Solution

The fourth proportional to 302,576.40, 453,864.60 and 145,112.40 is: 217,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,576.40 : 453,864.60 = 145,112.40 : x
  2. Step 2: Convert to fraction form
    302,576.40/453,864.60 = 145,112.40/x
  3. Step 3: Cross multiply
    302,576.40x = 453,864.60 × 145,112.40
  4. Step 4: Simplify right side
    302,576.40x = 65,861,381,381.04
  5. Step 5: Solve for x
    x = 65,861,381,381.04/302,576.40
  6. Step 6: Final answer
    x = 217,668.60

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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.