Home / 209,084.76-288,536.18-118,440.36

Finding the Fourth Proportional to 209,084.76, 288,536.18 and 118,440.36

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Solution

The fourth proportional to 209,084.76, 288,536.18 and 118,440.36 is: 163,447.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,084.76 : 288,536.18 = 118,440.36 : x
  2. Step 2: Convert to fraction form
    209,084.76/288,536.18 = 118,440.36/x
  3. Step 3: Cross multiply
    209,084.76x = 288,536.18 × 118,440.36
  4. Step 4: Simplify right side
    209,084.76x = 34,174,328,440.02
  5. Step 5: Solve for x
    x = 34,174,328,440.02/209,084.76
  6. Step 6: Final answer
    x = 163,447.25

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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.