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Finding the Fourth Proportional to 218,849.95, 302,012.84 and 118,247.95

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Solution

The fourth proportional to 218,849.95, 302,012.84 and 118,247.95 is: 163,182.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,849.95 : 302,012.84 = 118,247.95 : x
  2. Step 2: Convert to fraction form
    218,849.95/302,012.84 = 118,247.95/x
  3. Step 3: Cross multiply
    218,849.95x = 302,012.84 × 118,247.95
  4. Step 4: Simplify right side
    218,849.95x = 35,712,397,102.37
  5. Step 5: Solve for x
    x = 35,712,397,102.37/218,849.95
  6. Step 6: Final answer
    x = 163,182.12

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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.