Home / 261,903.04-393,026.64-143,657.44

Finding the Fourth Proportional to 261,903.04, 393,026.64 and 143,657.44

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Solution

The fourth proportional to 261,903.04, 393,026.64 and 143,657.44 is: 215,580.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,903.04 : 393,026.64 = 143,657.44 : x
  2. Step 2: Convert to fraction form
    261,903.04/393,026.64 = 143,657.44/x
  3. Step 3: Cross multiply
    261,903.04x = 393,026.64 × 143,657.44
  4. Step 4: Simplify right side
    261,903.04x = 56,461,200,954.20
  5. Step 5: Solve for x
    x = 56,461,200,954.20/261,903.04
  6. Step 6: Final answer
    x = 215,580.55

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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.