Home / 355,690.12-533,684.94-155,907.40

Finding the Fourth Proportional to 355,690.12, 533,684.94 and 155,907.40

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Solution

The fourth proportional to 355,690.12, 533,684.94 and 155,907.40 is: 233,926.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,690.12 : 533,684.94 = 155,907.40 : x
  2. Step 2: Convert to fraction form
    355,690.12/533,684.94 = 155,907.40/x
  3. Step 3: Cross multiply
    355,690.12x = 533,684.94 × 155,907.40
  4. Step 4: Simplify right side
    355,690.12x = 83,205,431,414.56
  5. Step 5: Solve for x
    x = 83,205,431,414.56/355,690.12
  6. Step 6: Final answer
    x = 233,926.74

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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.