Home / 209,028.28-288,462.83-118,403.06

Finding the Fourth Proportional to 209,028.28, 288,462.83 and 118,403.06

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Solution

The fourth proportional to 209,028.28, 288,462.83 and 118,403.06 is: 163,398.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,028.28 : 288,462.83 = 118,403.06 : x
  2. Step 2: Convert to fraction form
    209,028.28/288,462.83 = 118,403.06/x
  3. Step 3: Cross multiply
    209,028.28x = 288,462.83 × 118,403.06
  4. Step 4: Simplify right side
    209,028.28x = 34,154,880,815.67
  5. Step 5: Solve for x
    x = 34,154,880,815.67/209,028.28
  6. Step 6: Final answer
    x = 163,398.37

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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.