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Finding the Fourth Proportional to 318,281, 439,228.26 and 184,153.64

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Solution

The fourth proportional to 318,281, 439,228.26 and 184,153.64 is: 254,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,281 : 439,228.26 = 184,153.64 : x
  2. Step 2: Convert to fraction form
    318,281/439,228.26 = 184,153.64/x
  3. Step 3: Cross multiply
    318,281x = 439,228.26 × 184,153.64
  4. Step 4: Simplify right side
    318,281x = 80,885,482,869.87
  5. Step 5: Solve for x
    x = 80,885,482,869.87/318,281
  6. Step 6: Final answer
    x = 254,132.30

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1.5x scale

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.