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Finding the Fourth Proportional to 400,885.32, 553,203.62 and 239,829.17

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Solution

The fourth proportional to 400,885.32, 553,203.62 and 239,829.17 is: 330,953.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,885.32 : 553,203.62 = 239,829.17 : x
  2. Step 2: Convert to fraction form
    400,885.32/553,203.62 = 239,829.17/x
  3. Step 3: Cross multiply
    400,885.32x = 553,203.62 × 239,829.17
  4. Step 4: Simplify right side
    400,885.32x = 132,674,365,025.60
  5. Step 5: Solve for x
    x = 132,674,365,025.60/400,885.32
  6. Step 6: Final answer
    x = 330,953.41

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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.