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Finding the Fourth Proportional to 302,640.57, 450,388.19 and 292,549.95

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Solution

The fourth proportional to 302,640.57, 450,388.19 and 292,549.95 is: 435,371.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,640.57 : 450,388.19 = 292,549.95 : x
  2. Step 2: Convert to fraction form
    302,640.57/450,388.19 = 292,549.95/x
  3. Step 3: Cross multiply
    302,640.57x = 450,388.19 × 292,549.95
  4. Step 4: Simplify right side
    302,640.57x = 131,761,043,196.47
  5. Step 5: Solve for x
    x = 131,761,043,196.47/302,640.57
  6. Step 6: Final answer
    x = 435,371.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.