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Finding the Fourth Proportional to 349,051.68, 481,678.68 and 213,312.72

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Solution

The fourth proportional to 349,051.68, 481,678.68 and 213,312.72 is: 294,363.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,051.68 : 481,678.68 = 213,312.72 : x
  2. Step 2: Convert to fraction form
    349,051.68/481,678.68 = 213,312.72/x
  3. Step 3: Cross multiply
    349,051.68x = 481,678.68 × 213,312.72
  4. Step 4: Simplify right side
    349,051.68x = 102,748,189,396.81
  5. Step 5: Solve for x
    x = 102,748,189,396.81/349,051.68
  6. Step 6: Final answer
    x = 294,363.83

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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.