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Finding the Fourth Proportional to 260,002.50, 390,003.75 and 63,010.50

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Solution

The fourth proportional to 260,002.50, 390,003.75 and 63,010.50 is: 94,515.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,002.50 : 390,003.75 = 63,010.50 : x
  2. Step 2: Convert to fraction form
    260,002.50/390,003.75 = 63,010.50/x
  3. Step 3: Cross multiply
    260,002.50x = 390,003.75 × 63,010.50
  4. Step 4: Simplify right side
    260,002.50x = 24,574,331,289.38
  5. Step 5: Solve for x
    x = 24,574,331,289.38/260,002.50
  6. Step 6: Final answer
    x = 94,515.75

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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.