Home / 209,096.76-288,489.96-118,438.32

Finding the Fourth Proportional to 209,096.76, 288,489.96 and 118,438.32

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Solution

The fourth proportional to 209,096.76, 288,489.96 and 118,438.32 is: 163,408.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,096.76 : 288,489.96 = 118,438.32 : x
  2. Step 2: Convert to fraction form
    209,096.76/288,489.96 = 118,438.32/x
  3. Step 3: Cross multiply
    209,096.76x = 288,489.96 × 118,438.32
  4. Step 4: Simplify right side
    209,096.76x = 34,168,266,199.27
  5. Step 5: Solve for x
    x = 34,168,266,199.27/209,096.76
  6. Step 6: Final answer
    x = 163,408.87

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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.