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Finding the Fourth Proportional to 407,325.08, 610,790.34 and 238,900.56

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Solution

The fourth proportional to 407,325.08, 610,790.34 and 238,900.56 is: 358,235.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,325.08 : 610,790.34 = 238,900.56 : x
  2. Step 2: Convert to fraction form
    407,325.08/610,790.34 = 238,900.56/x
  3. Step 3: Cross multiply
    407,325.08x = 610,790.34 × 238,900.56
  4. Step 4: Simplify right side
    407,325.08x = 145,918,154,268.59
  5. Step 5: Solve for x
    x = 145,918,154,268.59/407,325.08
  6. Step 6: Final answer
    x = 358,235.13

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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.