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Finding the Fourth Proportional to 218,792.63, 301,934.10 and 118,190.63

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Solution

The fourth proportional to 218,792.63, 301,934.10 and 118,190.63 is: 163,103.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,792.63 : 301,934.10 = 118,190.63 : x
  2. Step 2: Convert to fraction form
    218,792.63/301,934.10 = 118,190.63/x
  3. Step 3: Cross multiply
    218,792.63x = 301,934.10 × 118,190.63
  4. Step 4: Simplify right side
    218,792.63x = 35,685,779,987.81
  5. Step 5: Solve for x
    x = 35,685,779,987.81/218,792.63
  6. Step 6: Final answer
    x = 163,103.21

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1.5x scale

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.