Home / 209,010.21-288,440.90-118,364.22

Finding the Fourth Proportional to 209,010.21, 288,440.90 and 118,364.22

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Solution

The fourth proportional to 209,010.21, 288,440.90 and 118,364.22 is: 163,346.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,010.21 : 288,440.90 = 118,364.22 : x
  2. Step 2: Convert to fraction form
    209,010.21/288,440.90 = 118,364.22/x
  3. Step 3: Cross multiply
    209,010.21x = 288,440.90 × 118,364.22
  4. Step 4: Simplify right side
    209,010.21x = 34,141,082,144.60
  5. Step 5: Solve for x
    x = 34,141,082,144.60/209,010.21
  6. Step 6: Final answer
    x = 163,346.48

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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.