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Finding the Fourth Proportional to 400,901.67, 553,220.55 and 219,577.50

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Solution

The fourth proportional to 400,901.67, 553,220.55 and 219,577.50 is: 303,003.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,901.67 : 553,220.55 = 219,577.50 : x
  2. Step 2: Convert to fraction form
    400,901.67/553,220.55 = 219,577.50/x
  3. Step 3: Cross multiply
    400,901.67x = 553,220.55 × 219,577.50
  4. Step 4: Simplify right side
    400,901.67x = 121,474,785,317.63
  5. Step 5: Solve for x
    x = 121,474,785,317.63/400,901.67
  6. Step 6: Final answer
    x = 303,003.94

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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.