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Finding the Fourth Proportional to 538,763.20, 807,799.20 and 223,345.60

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Solution

The fourth proportional to 538,763.20, 807,799.20 and 223,345.60 is: 334,875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,763.20 : 807,799.20 = 223,345.60 : x
  2. Step 2: Convert to fraction form
    538,763.20/807,799.20 = 223,345.60/x
  3. Step 3: Cross multiply
    538,763.20x = 807,799.20 × 223,345.60
  4. Step 4: Simplify right side
    538,763.20x = 180,418,397,003.52
  5. Step 5: Solve for x
    x = 180,418,397,003.52/538,763.20
  6. Step 6: Final answer
    x = 334,875.13

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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.