Home / 209,752.00-289,567.20-163,081.38

Finding the Fourth Proportional to 209,752.00, 289,567.20 and 163,081.38

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Solution

The fourth proportional to 209,752.00, 289,567.20 and 163,081.38 is: 225,137.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,752.00 : 289,567.20 = 163,081.38 : x
  2. Step 2: Convert to fraction form
    209,752.00/289,567.20 = 163,081.38/x
  3. Step 3: Cross multiply
    209,752.00x = 289,567.20 × 163,081.38
  4. Step 4: Simplify right side
    209,752.00x = 47,223,020,276.17
  5. Step 5: Solve for x
    x = 47,223,020,276.17/209,752.00
  6. Step 6: Final answer
    x = 225,137.40

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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.