Home / 229,728.67-344,368.03-128,576.11

Finding the Fourth Proportional to 229,728.67, 344,368.03 and 128,576.11

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Solution

The fourth proportional to 229,728.67, 344,368.03 and 128,576.11 is: 192,738.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,728.67 : 344,368.03 = 128,576.11 : x
  2. Step 2: Convert to fraction form
    229,728.67/344,368.03 = 128,576.11/x
  3. Step 3: Cross multiply
    229,728.67x = 344,368.03 × 128,576.11
  4. Step 4: Simplify right side
    229,728.67x = 44,277,501,705.76
  5. Step 5: Solve for x
    x = 44,277,501,705.76/229,728.67
  6. Step 6: Final answer
    x = 192,738.25

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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.