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Finding the Fourth Proportional to 400,963.34, 553,352.64 and 219,675.62

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Solution

The fourth proportional to 400,963.34, 553,352.64 and 219,675.62 is: 303,165.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,963.34 : 553,352.64 = 219,675.62 : x
  2. Step 2: Convert to fraction form
    400,963.34/553,352.64 = 219,675.62/x
  3. Step 3: Cross multiply
    400,963.34x = 553,352.64 × 219,675.62
  4. Step 4: Simplify right side
    400,963.34x = 121,558,084,270.64
  5. Step 5: Solve for x
    x = 121,558,084,270.64/400,963.34
  6. Step 6: Final answer
    x = 303,165.08

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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.