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Finding the Fourth Proportional to 499,315.36, 748,310.64 and 218,526.88

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Solution

The fourth proportional to 499,315.36, 748,310.64 and 218,526.88 is: 327,500.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,315.36 : 748,310.64 = 218,526.88 : x
  2. Step 2: Convert to fraction form
    499,315.36/748,310.64 = 218,526.88/x
  3. Step 3: Cross multiply
    499,315.36x = 748,310.64 × 218,526.88
  4. Step 4: Simplify right side
    499,315.36x = 163,525,989,430.00
  5. Step 5: Solve for x
    x = 163,525,989,430.00/499,315.36
  6. Step 6: Final answer
    x = 327,500.42

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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.