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Finding the Fourth Proportional to 218,851.45, 302,014.90 and 118,249.45

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Solution

The fourth proportional to 218,851.45, 302,014.90 and 118,249.45 is: 163,184.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,851.45 : 302,014.90 = 118,249.45 : x
  2. Step 2: Convert to fraction form
    218,851.45/302,014.90 = 118,249.45/x
  3. Step 3: Cross multiply
    218,851.45x = 302,014.90 × 118,249.45
  4. Step 4: Simplify right side
    218,851.45x = 35,713,095,816.81
  5. Step 5: Solve for x
    x = 35,713,095,816.81/218,851.45
  6. Step 6: Final answer
    x = 163,184.19

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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.