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Finding the Fourth Proportional to 371,237.52, 512,279.40 and 218,281.92

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Solution

The fourth proportional to 371,237.52, 512,279.40 and 218,281.92 is: 301,212.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,237.52 : 512,279.40 = 218,281.92 : x
  2. Step 2: Convert to fraction form
    371,237.52/512,279.40 = 218,281.92/x
  3. Step 3: Cross multiply
    371,237.52x = 512,279.40 × 218,281.92
  4. Step 4: Simplify right side
    371,237.52x = 111,821,331,008.45
  5. Step 5: Solve for x
    x = 111,821,331,008.45/371,237.52
  6. Step 6: Final answer
    x = 301,212.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.