Home / 317,709.13-438,068.20-236,996.55

Finding the Fourth Proportional to 317,709.13, 438,068.20 and 236,996.55

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Solution

The fourth proportional to 317,709.13, 438,068.20 and 236,996.55 is: 326,778.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,709.13 : 438,068.20 = 236,996.55 : x
  2. Step 2: Convert to fraction form
    317,709.13/438,068.20 = 236,996.55/x
  3. Step 3: Cross multiply
    317,709.13x = 438,068.20 × 236,996.55
  4. Step 4: Simplify right side
    317,709.13x = 103,820,652,064.71
  5. Step 5: Solve for x
    x = 103,820,652,064.71/317,709.13
  6. Step 6: Final answer
    x = 326,778.94

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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.