Home / 289,974.20-434,730.90-158,646.20

Finding the Fourth Proportional to 289,974.20, 434,730.90 and 158,646.20

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Solution

The fourth proportional to 289,974.20, 434,730.90 and 158,646.20 is: 237,843.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,974.20 : 434,730.90 = 158,646.20 : x
  2. Step 2: Convert to fraction form
    289,974.20/434,730.90 = 158,646.20/x
  3. Step 3: Cross multiply
    289,974.20x = 434,730.90 × 158,646.20
  4. Step 4: Simplify right side
    289,974.20x = 68,968,405,307.58
  5. Step 5: Solve for x
    x = 68,968,405,307.58/289,974.20
  6. Step 6: Final answer
    x = 237,843.25

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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.