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Finding the Fourth Proportional to 371,549.58, 512,782.20 and 220,646.58

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Solution

The fourth proportional to 371,549.58, 512,782.20 and 220,646.58 is: 304,518.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,549.58 : 512,782.20 = 220,646.58 : x
  2. Step 2: Convert to fraction form
    371,549.58/512,782.20 = 220,646.58/x
  3. Step 3: Cross multiply
    371,549.58x = 512,782.20 × 220,646.58
  4. Step 4: Simplify right side
    371,549.58x = 113,143,638,714.88
  5. Step 5: Solve for x
    x = 113,143,638,714.88/371,549.58
  6. Step 6: Final answer
    x = 304,518.28

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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.