Home / 209,144.76-288,630.83-118,518.30

Finding the Fourth Proportional to 209,144.76, 288,630.83 and 118,518.30

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Solution

The fourth proportional to 209,144.76, 288,630.83 and 118,518.30 is: 163,561.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,144.76 : 288,630.83 = 118,518.30 : x
  2. Step 2: Convert to fraction form
    209,144.76/288,630.83 = 118,518.30/x
  3. Step 3: Cross multiply
    209,144.76x = 288,630.83 × 118,518.30
  4. Step 4: Simplify right side
    209,144.76x = 34,208,035,299.19
  5. Step 5: Solve for x
    x = 34,208,035,299.19/209,144.76
  6. Step 6: Final answer
    x = 163,561.52

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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.