Home / 289,305.68-434,027.79-120,732.23

Finding the Fourth Proportional to 289,305.68, 434,027.79 and 120,732.23

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Solution

The fourth proportional to 289,305.68, 434,027.79 and 120,732.23 is: 181,127.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,305.68 : 434,027.79 = 120,732.23 : x
  2. Step 2: Convert to fraction form
    289,305.68/434,027.79 = 120,732.23/x
  3. Step 3: Cross multiply
    289,305.68x = 434,027.79 × 120,732.23
  4. Step 4: Simplify right side
    289,305.68x = 52,401,142,968.67
  5. Step 5: Solve for x
    x = 52,401,142,968.67/289,305.68
  6. Step 6: Final answer
    x = 181,127.25

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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.