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Finding the Fourth Proportional to 401,826.30, 601,864.65 and 243,779.10

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Solution

The fourth proportional to 401,826.30, 601,864.65 and 243,779.10 is: 365,137.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,826.30 : 601,864.65 = 243,779.10 : x
  2. Step 2: Convert to fraction form
    401,826.30/601,864.65 = 243,779.10/x
  3. Step 3: Cross multiply
    401,826.30x = 601,864.65 × 243,779.10
  4. Step 4: Simplify right side
    401,826.30x = 146,722,022,698.82
  5. Step 5: Solve for x
    x = 146,722,022,698.82/401,826.30
  6. Step 6: Final answer
    x = 365,137.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.