Home / 209,132.49-288,601.83-118,488.28

Finding the Fourth Proportional to 209,132.49, 288,601.83 and 118,488.28

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Solution

The fourth proportional to 209,132.49, 288,601.83 and 118,488.28 is: 163,513.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,132.49 : 288,601.83 = 118,488.28 : x
  2. Step 2: Convert to fraction form
    209,132.49/288,601.83 = 118,488.28/x
  3. Step 3: Cross multiply
    209,132.49x = 288,601.83 × 118,488.28
  4. Step 4: Simplify right side
    209,132.49x = 34,195,934,441.55
  5. Step 5: Solve for x
    x = 34,195,934,441.55/209,132.49
  6. Step 6: Final answer
    x = 163,513.26

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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.