Home / 260,011.58-390,031.95-73,008.50

Finding the Fourth Proportional to 260,011.58, 390,031.95 and 73,008.50

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Solution

The fourth proportional to 260,011.58, 390,031.95 and 73,008.50 is: 109,516.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,011.58 : 390,031.95 = 73,008.50 : x
  2. Step 2: Convert to fraction form
    260,011.58/390,031.95 = 73,008.50/x
  3. Step 3: Cross multiply
    260,011.58x = 390,031.95 × 73,008.50
  4. Step 4: Simplify right side
    260,011.58x = 28,475,647,621.58
  5. Step 5: Solve for x
    x = 28,475,647,621.58/260,011.58
  6. Step 6: Final answer
    x = 109,516.84

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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.