Home / 355,923.15-491,097.99-210,774.57

Finding the Fourth Proportional to 355,923.15, 491,097.99 and 210,774.57

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Solution

The fourth proportional to 355,923.15, 491,097.99 and 210,774.57 is: 290,823.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,923.15 : 491,097.99 = 210,774.57 : x
  2. Step 2: Convert to fraction form
    355,923.15/491,097.99 = 210,774.57/x
  3. Step 3: Cross multiply
    355,923.15x = 491,097.99 × 210,774.57
  4. Step 4: Simplify right side
    355,923.15x = 103,510,967,670.11
  5. Step 5: Solve for x
    x = 103,510,967,670.11/355,923.15
  6. Step 6: Final answer
    x = 290,823.93

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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.