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Finding the Fourth Proportional to 346,779.34, 520,187 and 110,140.54

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Solution

The fourth proportional to 346,779.34, 520,187 and 110,140.54 is: 165,216.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,779.34 : 520,187 = 110,140.54 : x
  2. Step 2: Convert to fraction form
    346,779.34/520,187 = 110,140.54/x
  3. Step 3: Cross multiply
    346,779.34x = 520,187 × 110,140.54
  4. Step 4: Simplify right side
    346,779.34x = 57,293,677,080.98
  5. Step 5: Solve for x
    x = 57,293,677,080.98/346,779.34
  6. Step 6: Final answer
    x = 165,216.52

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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.