Home / 307,295.04-424,420.26-205,142.64

Finding the Fourth Proportional to 307,295.04, 424,420.26 and 205,142.64

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Solution

The fourth proportional to 307,295.04, 424,420.26 and 205,142.64 is: 283,332.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,295.04 : 424,420.26 = 205,142.64 : x
  2. Step 2: Convert to fraction form
    307,295.04/424,420.26 = 205,142.64/x
  3. Step 3: Cross multiply
    307,295.04x = 424,420.26 × 205,142.64
  4. Step 4: Simplify right side
    307,295.04x = 87,066,692,605.89
  5. Step 5: Solve for x
    x = 87,066,692,605.89/307,295.04
  6. Step 6: Final answer
    x = 283,332.57

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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.