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Finding the Fourth Proportional to 302,506.30, 453,759.45 and 261,034.30

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Solution

The fourth proportional to 302,506.30, 453,759.45 and 261,034.30 is: 391,551.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,506.30 : 453,759.45 = 261,034.30 : x
  2. Step 2: Convert to fraction form
    302,506.30/453,759.45 = 261,034.30/x
  3. Step 3: Cross multiply
    302,506.30x = 453,759.45 × 261,034.30
  4. Step 4: Simplify right side
    302,506.30x = 118,446,780,399.14
  5. Step 5: Solve for x
    x = 118,446,780,399.14/302,506.30
  6. Step 6: Final answer
    x = 391,551.45

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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.