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Finding the Fourth Proportional to 371,208.96, 511,881.12 and 220,276.80

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Solution

The fourth proportional to 371,208.96, 511,881.12 and 220,276.80 is: 303,752.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,208.96 : 511,881.12 = 220,276.80 : x
  2. Step 2: Convert to fraction form
    371,208.96/511,881.12 = 220,276.80/x
  3. Step 3: Cross multiply
    371,208.96x = 511,881.12 × 220,276.80
  4. Step 4: Simplify right side
    371,208.96x = 112,755,535,094.02
  5. Step 5: Solve for x
    x = 112,755,535,094.02/371,208.96
  6. Step 6: Final answer
    x = 303,752.19

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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.