Home / 312,623.24-468,974.54-99,315.07

Finding the Fourth Proportional to 312,623.24, 468,974.54 and 99,315.07

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Solution

The fourth proportional to 312,623.24, 468,974.54 and 99,315.07 is: 148,985.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,623.24 : 468,974.54 = 99,315.07 : x
  2. Step 2: Convert to fraction form
    312,623.24/468,974.54 = 99,315.07/x
  3. Step 3: Cross multiply
    312,623.24x = 468,974.54 × 99,315.07
  4. Step 4: Simplify right side
    312,623.24x = 46,576,238,344.17
  5. Step 5: Solve for x
    x = 46,576,238,344.17/312,623.24
  6. Step 6: Final answer
    x = 148,985.21

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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.