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Finding the Fourth Proportional to 318,280, 439,226.88 and 184,152.64

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Solution

The fourth proportional to 318,280, 439,226.88 and 184,152.64 is: 254,130.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,280 : 439,226.88 = 184,152.64 : x
  2. Step 2: Convert to fraction form
    318,280/439,226.88 = 184,152.64/x
  3. Step 3: Cross multiply
    318,280x = 439,226.88 × 184,152.64
  4. Step 4: Simplify right side
    318,280x = 80,884,789,510.96
  5. Step 5: Solve for x
    x = 80,884,789,510.96/318,280
  6. Step 6: Final answer
    x = 254,130.92

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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.