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Finding the Fourth Proportional to 260,004.50, 390,006.76 and 63,012.50

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Solution

The fourth proportional to 260,004.50, 390,006.76 and 63,012.50 is: 94,518.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,004.50 : 390,006.76 = 63,012.50 : x
  2. Step 2: Convert to fraction form
    260,004.50/390,006.76 = 63,012.50/x
  3. Step 3: Cross multiply
    260,004.50x = 390,006.76 × 63,012.50
  4. Step 4: Simplify right side
    260,004.50x = 24,575,300,964.50
  5. Step 5: Solve for x
    x = 24,575,300,964.50/260,004.50
  6. Step 6: Final answer
    x = 94,518.75

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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.