Home / 289,965.77-434,844.37-100,374.74

Finding the Fourth Proportional to 289,965.77, 434,844.37 and 100,374.74

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Solution

The fourth proportional to 289,965.77, 434,844.37 and 100,374.74 is: 150,526.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,965.77 : 434,844.37 = 100,374.74 : x
  2. Step 2: Convert to fraction form
    289,965.77/434,844.37 = 100,374.74/x
  3. Step 3: Cross multiply
    289,965.77x = 434,844.37 × 100,374.74
  4. Step 4: Simplify right side
    289,965.77x = 43,647,390,579.21
  5. Step 5: Solve for x
    x = 43,647,390,579.21/289,965.77
  6. Step 6: Final answer
    x = 150,526.01

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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.