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Finding the Fourth Proportional to 260,009.50, 390,014.25 and 63,017.50

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Solution

The fourth proportional to 260,009.50, 390,014.25 and 63,017.50 is: 94,526.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,009.50 : 390,014.25 = 63,017.50 : x
  2. Step 2: Convert to fraction form
    260,009.50/390,014.25 = 63,017.50/x
  3. Step 3: Cross multiply
    260,009.50x = 390,014.25 × 63,017.50
  4. Step 4: Simplify right side
    260,009.50x = 24,577,722,999.38
  5. Step 5: Solve for x
    x = 24,577,722,999.38/260,009.50
  6. Step 6: Final answer
    x = 94,526.25

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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.