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Finding the Fourth Proportional to 302,605.60, 453,908.40 and 103,151.20

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Solution

The fourth proportional to 302,605.60, 453,908.40 and 103,151.20 is: 154,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,605.60 : 453,908.40 = 103,151.20 : x
  2. Step 2: Convert to fraction form
    302,605.60/453,908.40 = 103,151.20/x
  3. Step 3: Cross multiply
    302,605.60x = 453,908.40 × 103,151.20
  4. Step 4: Simplify right side
    302,605.60x = 46,821,196,150.08
  5. Step 5: Solve for x
    x = 46,821,196,150.08/302,605.60
  6. Step 6: Final answer
    x = 154,726.80

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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.