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Finding the Fourth Proportional to 260,017.58, 390,040.96 and 73,014.50

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Solution

The fourth proportional to 260,017.58, 390,040.96 and 73,014.50 is: 109,525.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,017.58 : 390,040.96 = 73,014.50 : x
  2. Step 2: Convert to fraction form
    260,017.58/390,040.96 = 73,014.50/x
  3. Step 3: Cross multiply
    260,017.58x = 390,040.96 × 73,014.50
  4. Step 4: Simplify right side
    260,017.58x = 28,478,645,673.92
  5. Step 5: Solve for x
    x = 28,478,645,673.92/260,017.58
  6. Step 6: Final answer
    x = 109,525.85

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1.5x scale

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.