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Finding the Fourth Proportional to 400,924.67, 553,276.01 and 239,779.71

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Solution

The fourth proportional to 400,924.67, 553,276.01 and 239,779.71 is: 330,895.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,924.67 : 553,276.01 = 239,779.71 : x
  2. Step 2: Convert to fraction form
    400,924.67/553,276.01 = 239,779.71/x
  3. Step 3: Cross multiply
    400,924.67x = 553,276.01 × 239,779.71
  4. Step 4: Simplify right side
    400,924.67x = 132,664,360,028.86
  5. Step 5: Solve for x
    x = 132,664,360,028.86/400,924.67
  6. Step 6: Final answer
    x = 330,895.98

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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.