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Finding the Fourth Proportional to 302,480.80, 453,764.40 and 102,810.40

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Solution

The fourth proportional to 302,480.80, 453,764.40 and 102,810.40 is: 154,230.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,480.80 : 453,764.40 = 102,810.40 : x
  2. Step 2: Convert to fraction form
    302,480.80/453,764.40 = 102,810.40/x
  3. Step 3: Cross multiply
    302,480.80x = 453,764.40 × 102,810.40
  4. Step 4: Simplify right side
    302,480.80x = 46,651,699,469.76
  5. Step 5: Solve for x
    x = 46,651,699,469.76/302,480.80
  6. Step 6: Final answer
    x = 154,230.28

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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.