Home / 209,029.28-288,464.21-118,404.06

Finding the Fourth Proportional to 209,029.28, 288,464.21 and 118,404.06

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Solution

The fourth proportional to 209,029.28, 288,464.21 and 118,404.06 is: 163,399.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,029.28 : 288,464.21 = 118,404.06 : x
  2. Step 2: Convert to fraction form
    209,029.28/288,464.21 = 118,404.06/x
  3. Step 3: Cross multiply
    209,029.28x = 288,464.21 × 118,404.06
  4. Step 4: Simplify right side
    209,029.28x = 34,155,333,628.69
  5. Step 5: Solve for x
    x = 34,155,333,628.69/209,029.28
  6. Step 6: Final answer
    x = 163,399.76

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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.