Home / 318,083.52-438,772.23-190,685.10

Finding the Fourth Proportional to 318,083.52, 438,772.23 and 190,685.10

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Solution

The fourth proportional to 318,083.52, 438,772.23 and 190,685.10 is: 263,035.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,083.52 : 438,772.23 = 190,685.10 : x
  2. Step 2: Convert to fraction form
    318,083.52/438,772.23 = 190,685.10/x
  3. Step 3: Cross multiply
    318,083.52x = 438,772.23 × 190,685.10
  4. Step 4: Simplify right side
    318,083.52x = 83,667,326,554.77
  5. Step 5: Solve for x
    x = 83,667,326,554.77/318,083.52
  6. Step 6: Final answer
    x = 263,035.72

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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.