Home / 289,457.04-434,356.80-161,481.12

Finding the Fourth Proportional to 289,457.04, 434,356.80 and 161,481.12

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Solution

The fourth proportional to 289,457.04, 434,356.80 and 161,481.12 is: 242,317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,457.04 : 434,356.80 = 161,481.12 : x
  2. Step 2: Convert to fraction form
    289,457.04/434,356.80 = 161,481.12/x
  3. Step 3: Cross multiply
    289,457.04x = 434,356.80 × 161,481.12
  4. Step 4: Simplify right side
    289,457.04x = 70,140,422,543.62
  5. Step 5: Solve for x
    x = 70,140,422,543.62/289,457.04
  6. Step 6: Final answer
    x = 242,317.21

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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.