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Finding the Fourth Proportional to 538,970.40, 808,552.80 and 223,459.20

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Solution

The fourth proportional to 538,970.40, 808,552.80 and 223,459.20 is: 335,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,970.40 : 808,552.80 = 223,459.20 : x
  2. Step 2: Convert to fraction form
    538,970.40/808,552.80 = 223,459.20/x
  3. Step 3: Cross multiply
    538,970.40x = 808,552.80 × 223,459.20
  4. Step 4: Simplify right side
    538,970.40x = 180,678,561,845.76
  5. Step 5: Solve for x
    x = 180,678,561,845.76/538,970.40
  6. Step 6: Final answer
    x = 335,229.10

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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.