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Finding the Fourth Proportional to 400,751.08, 553,035.62 and 230,984.04

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Solution

The fourth proportional to 400,751.08, 553,035.62 and 230,984.04 is: 318,757.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,751.08 : 553,035.62 = 230,984.04 : x
  2. Step 2: Convert to fraction form
    400,751.08/553,035.62 = 230,984.04/x
  3. Step 3: Cross multiply
    400,751.08x = 553,035.62 × 230,984.04
  4. Step 4: Simplify right side
    400,751.08x = 127,742,401,771.51
  5. Step 5: Solve for x
    x = 127,742,401,771.51/400,751.08
  6. Step 6: Final answer
    x = 318,757.47

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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.