Home / 209,025.18-288,457.83-118,378.89

Finding the Fourth Proportional to 209,025.18, 288,457.83 and 118,378.89

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Solution

The fourth proportional to 209,025.18, 288,457.83 and 118,378.89 is: 163,364.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,025.18 : 288,457.83 = 118,378.89 : x
  2. Step 2: Convert to fraction form
    209,025.18/288,457.83 = 118,378.89/x
  3. Step 3: Cross multiply
    209,025.18x = 288,457.83 × 118,378.89
  4. Step 4: Simplify right side
    209,025.18x = 34,147,317,727.21
  5. Step 5: Solve for x
    x = 34,147,317,727.21/209,025.18
  6. Step 6: Final answer
    x = 163,364.61

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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.