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Finding the Fourth Proportional to 212,642.60, 318,635.85 and 184,430.30

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Solution

The fourth proportional to 212,642.60, 318,635.85 and 184,430.30 is: 276,360.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,642.60 : 318,635.85 = 184,430.30 : x
  2. Step 2: Convert to fraction form
    212,642.60/318,635.85 = 184,430.30/x
  3. Step 3: Cross multiply
    212,642.60x = 318,635.85 × 184,430.30
  4. Step 4: Simplify right side
    212,642.60x = 58,766,105,406.26
  5. Step 5: Solve for x
    x = 58,766,105,406.26/212,642.60
  6. Step 6: Final answer
    x = 276,360.92

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1.5x scale

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.