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Finding the Fourth Proportional to 283,860.61, 425,412.64 and 134,140.65

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Solution

The fourth proportional to 283,860.61, 425,412.64 and 134,140.65 is: 201,032.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,860.61 : 425,412.64 = 134,140.65 : x
  2. Step 2: Convert to fraction form
    283,860.61/425,412.64 = 134,140.65/x
  3. Step 3: Cross multiply
    283,860.61x = 425,412.64 × 134,140.65
  4. Step 4: Simplify right side
    283,860.61x = 57,065,128,047.82
  5. Step 5: Solve for x
    x = 57,065,128,047.82/283,860.61
  6. Step 6: Final answer
    x = 201,032.22

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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.