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Finding the Fourth Proportional to 321,655.60, 482,484.64 and 134,535.84

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Solution

The fourth proportional to 321,655.60, 482,484.64 and 134,535.84 is: 201,804.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,655.60 : 482,484.64 = 134,535.84 : x
  2. Step 2: Convert to fraction form
    321,655.60/482,484.64 = 134,535.84/x
  3. Step 3: Cross multiply
    321,655.60x = 482,484.64 × 134,535.84
  4. Step 4: Simplify right side
    321,655.60x = 64,911,476,329.50
  5. Step 5: Solve for x
    x = 64,911,476,329.50/321,655.60
  6. Step 6: Final answer
    x = 201,804.28

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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.