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Finding the Fourth Proportional to 312,302.93, 468,384.26 and 143,661.26

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Solution

The fourth proportional to 312,302.93, 468,384.26 and 143,661.26 is: 215,459.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,302.93 : 468,384.26 = 143,661.26 : x
  2. Step 2: Convert to fraction form
    312,302.93/468,384.26 = 143,661.26/x
  3. Step 3: Cross multiply
    312,302.93x = 468,384.26 × 143,661.26
  4. Step 4: Simplify right side
    312,302.93x = 67,288,673,408.42
  5. Step 5: Solve for x
    x = 67,288,673,408.42/312,302.93
  6. Step 6: Final answer
    x = 215,459.63

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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.