Home / 293,019.39-438,330.06-221,409.72

Finding the Fourth Proportional to 293,019.39, 438,330.06 and 221,409.72

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Solution

The fourth proportional to 293,019.39, 438,330.06 and 221,409.72 is: 331,208.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,019.39 : 438,330.06 = 221,409.72 : x
  2. Step 2: Convert to fraction form
    293,019.39/438,330.06 = 221,409.72/x
  3. Step 3: Cross multiply
    293,019.39x = 438,330.06 × 221,409.72
  4. Step 4: Simplify right side
    293,019.39x = 97,050,532,553.48
  5. Step 5: Solve for x
    x = 97,050,532,553.48/293,019.39
  6. Step 6: Final answer
    x = 331,208.57

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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.