Home / 218,888.10-302,064.93-118,286.10

Finding the Fourth Proportional to 218,888.10, 302,064.93 and 118,286.10

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Solution

The fourth proportional to 218,888.10, 302,064.93 and 118,286.10 is: 163,234.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,888.10 : 302,064.93 = 118,286.10 : x
  2. Step 2: Convert to fraction form
    218,888.10/302,064.93 = 118,286.10/x
  3. Step 3: Cross multiply
    218,888.10x = 302,064.93 × 118,286.10
  4. Step 4: Simplify right side
    218,888.10x = 35,730,082,516.47
  5. Step 5: Solve for x
    x = 35,730,082,516.47/218,888.10
  6. Step 6: Final answer
    x = 163,234.47

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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.