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Finding the Fourth Proportional to 145,588, 218,148 and 122,260

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Solution

The fourth proportional to 145,588, 218,148 and 122,260 is: 183,193.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,588 : 218,148 = 122,260 : x
  2. Step 2: Convert to fraction form
    145,588/218,148 = 122,260/x
  3. Step 3: Cross multiply
    145,588x = 218,148 × 122,260
  4. Step 4: Simplify right side
    145,588x = 26,670,774,480
  5. Step 5: Solve for x
    x = 26,670,774,480/145,588
  6. Step 6: Final answer
    x = 183,193.49

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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.