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Finding the Fourth Proportional to 218,992.50, 302,210.37 and 118,391.22

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Solution

The fourth proportional to 218,992.50, 302,210.37 and 118,391.22 is: 163,380.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,992.50 : 302,210.37 = 118,391.22 : x
  2. Step 2: Convert to fraction form
    218,992.50/302,210.37 = 118,391.22/x
  3. Step 3: Cross multiply
    218,992.50x = 302,210.37 × 118,391.22
  4. Step 4: Simplify right side
    218,992.50x = 35,779,054,400.95
  5. Step 5: Solve for x
    x = 35,779,054,400.95/218,992.50
  6. Step 6: Final answer
    x = 163,380.27

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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.