Home / 289,443.02-434,226.90-89,759.39

Finding the Fourth Proportional to 289,443.02, 434,226.90 and 89,759.39

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Solution

The fourth proportional to 289,443.02, 434,226.90 and 89,759.39 is: 134,658.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,443.02 : 434,226.90 = 89,759.39 : x
  2. Step 2: Convert to fraction form
    289,443.02/434,226.90 = 89,759.39/x
  3. Step 3: Cross multiply
    289,443.02x = 434,226.90 × 89,759.39
  4. Step 4: Simplify right side
    289,443.02x = 38,975,941,665.59
  5. Step 5: Solve for x
    x = 38,975,941,665.59/289,443.02
  6. Step 6: Final answer
    x = 134,658.43

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1.5x scale

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.