Home / 400,243.69-552,340.65-218,951.73

Finding the Fourth Proportional to 400,243.69, 552,340.65 and 218,951.73

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Solution

The fourth proportional to 400,243.69, 552,340.65 and 218,951.73 is: 302,155.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,243.69 : 552,340.65 = 218,951.73 : x
  2. Step 2: Convert to fraction form
    400,243.69/552,340.65 = 218,951.73/x
  3. Step 3: Cross multiply
    400,243.69x = 552,340.65 × 218,951.73
  4. Step 4: Simplify right side
    400,243.69x = 120,935,938,795.55
  5. Step 5: Solve for x
    x = 120,935,938,795.55/400,243.69
  6. Step 6: Final answer
    x = 302,155.77

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1.5x scale

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.