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Finding the Fourth Proportional to 218,307.27, 301,263.53 and 122,813.94

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Solution

The fourth proportional to 218,307.27, 301,263.53 and 122,813.94 is: 169,482.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,307.27 : 301,263.53 = 122,813.94 : x
  2. Step 2: Convert to fraction form
    218,307.27/301,263.53 = 122,813.94/x
  3. Step 3: Cross multiply
    218,307.27x = 301,263.53 × 122,813.94
  4. Step 4: Simplify right side
    218,307.27x = 36,999,360,483.54
  5. Step 5: Solve for x
    x = 36,999,360,483.54/218,307.27
  6. Step 6: Final answer
    x = 169,482.95

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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.