Home / 621,231.90-931,667.64-242,068.08

Finding the Fourth Proportional to 621,231.90, 931,667.64 and 242,068.08

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Solution

The fourth proportional to 621,231.90, 931,667.64 and 242,068.08 is: 363,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,231.90 : 931,667.64 = 242,068.08 : x
  2. Step 2: Convert to fraction form
    621,231.90/931,667.64 = 242,068.08/x
  3. Step 3: Cross multiply
    621,231.90x = 931,667.64 × 242,068.08
  4. Step 4: Simplify right side
    621,231.90x = 225,526,996,812.93
  5. Step 5: Solve for x
    x = 225,526,996,812.93/621,231.90
  6. Step 6: Final answer
    x = 363,031.90

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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.