Home / 314,968.96-434,834.04-218,313.28

Finding the Fourth Proportional to 314,968.96, 434,834.04 and 218,313.28

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Solution

The fourth proportional to 314,968.96, 434,834.04 and 218,313.28 is: 301,394.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,968.96 : 434,834.04 = 218,313.28 : x
  2. Step 2: Convert to fraction form
    314,968.96/434,834.04 = 218,313.28/x
  3. Step 3: Cross multiply
    314,968.96x = 434,834.04 × 218,313.28
  4. Step 4: Simplify right side
    314,968.96x = 94,930,045,528.05
  5. Step 5: Solve for x
    x = 94,930,045,528.05/314,968.96
  6. Step 6: Final answer
    x = 301,394.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.