Home / 218,844.40-302,005.20-118,242.40

Finding the Fourth Proportional to 218,844.40, 302,005.20 and 118,242.40

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Solution

The fourth proportional to 218,844.40, 302,005.20 and 118,242.40 is: 163,174.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,844.40 : 302,005.20 = 118,242.40 : x
  2. Step 2: Convert to fraction form
    218,844.40/302,005.20 = 118,242.40/x
  3. Step 3: Cross multiply
    218,844.40x = 302,005.20 × 118,242.40
  4. Step 4: Simplify right side
    218,844.40x = 35,709,819,660.48
  5. Step 5: Solve for x
    x = 35,709,819,660.48/218,844.40
  6. Step 6: Final answer
    x = 163,174.47

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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.