Home / 289,333.28-434,067.24-89,643.08

Finding the Fourth Proportional to 289,333.28, 434,067.24 and 89,643.08

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Solution

The fourth proportional to 289,333.28, 434,067.24 and 89,643.08 is: 134,485.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,333.28 : 434,067.24 = 89,643.08 : x
  2. Step 2: Convert to fraction form
    289,333.28/434,067.24 = 89,643.08/x
  3. Step 3: Cross multiply
    289,333.28x = 434,067.24 × 89,643.08
  4. Step 4: Simplify right side
    289,333.28x = 38,911,124,320.70
  5. Step 5: Solve for x
    x = 38,911,124,320.70/289,333.28
  6. Step 6: Final answer
    x = 134,485.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.