Home / 286,920.63-430,196.33-137,157.57

Finding the Fourth Proportional to 286,920.63, 430,196.33 and 137,157.57

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Solution

The fourth proportional to 286,920.63, 430,196.33 and 137,157.57 is: 205,648.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,920.63 : 430,196.33 = 137,157.57 : x
  2. Step 2: Convert to fraction form
    286,920.63/430,196.33 = 137,157.57/x
  3. Step 3: Cross multiply
    286,920.63x = 430,196.33 × 137,157.57
  4. Step 4: Simplify right side
    286,920.63x = 59,004,683,588.61
  5. Step 5: Solve for x
    x = 59,004,683,588.61/286,920.63
  6. Step 6: Final answer
    x = 205,648.10

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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.