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Finding the Fourth Proportional to 260,002.88, 390,004.31 and 63,010.88

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Solution

The fourth proportional to 260,002.88, 390,004.31 and 63,010.88 is: 94,516.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,002.88 : 390,004.31 = 63,010.88 : x
  2. Step 2: Convert to fraction form
    260,002.88/390,004.31 = 63,010.88/x
  3. Step 3: Cross multiply
    260,002.88x = 390,004.31 × 63,010.88
  4. Step 4: Simplify right side
    260,002.88x = 24,574,512,984.40
  5. Step 5: Solve for x
    x = 24,574,512,984.40/260,002.88
  6. Step 6: Final answer
    x = 94,516.31

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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.