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Finding the Fourth Proportional to 318,679, 439,798.02 and 184,543

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Solution

The fourth proportional to 318,679, 439,798.02 and 184,543 is: 254,681.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,679 : 439,798.02 = 184,543 : x
  2. Step 2: Convert to fraction form
    318,679/439,798.02 = 184,543/x
  3. Step 3: Cross multiply
    318,679x = 439,798.02 × 184,543
  4. Step 4: Simplify right side
    318,679x = 81,161,646,004.86
  5. Step 5: Solve for x
    x = 81,161,646,004.86/318,679
  6. Step 6: Final answer
    x = 254,681.50

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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.