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Finding the Fourth Proportional to 538,308.23, 807,462.36 and 159,199.45

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Solution

The fourth proportional to 538,308.23, 807,462.36 and 159,199.45 is: 238,799.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,308.23 : 807,462.36 = 159,199.45 : x
  2. Step 2: Convert to fraction form
    538,308.23/807,462.36 = 159,199.45/x
  3. Step 3: Cross multiply
    538,308.23x = 807,462.36 × 159,199.45
  4. Step 4: Simplify right side
    538,308.23x = 128,547,561,589.05
  5. Step 5: Solve for x
    x = 128,547,561,589.05/538,308.23
  6. Step 6: Final answer
    x = 238,799.18

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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.