Home / 289,742.20-434,030.10-201,095.80

Finding the Fourth Proportional to 289,742.20, 434,030.10 and 201,095.80

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Solution

The fourth proportional to 289,742.20, 434,030.10 and 201,095.80 is: 301,238.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,742.20 : 434,030.10 = 201,095.80 : x
  2. Step 2: Convert to fraction form
    289,742.20/434,030.10 = 201,095.80/x
  3. Step 3: Cross multiply
    289,742.20x = 434,030.10 × 201,095.80
  4. Step 4: Simplify right side
    289,742.20x = 87,281,630,183.58
  5. Step 5: Solve for x
    x = 87,281,630,183.58/289,742.20
  6. Step 6: Final answer
    x = 301,238.93

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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.