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Finding the Fourth Proportional to 230,853.69, 318,492.54 and 135,325.53

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Solution

The fourth proportional to 230,853.69, 318,492.54 and 135,325.53 is: 186,699.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,853.69 : 318,492.54 = 135,325.53 : x
  2. Step 2: Convert to fraction form
    230,853.69/318,492.54 = 135,325.53/x
  3. Step 3: Cross multiply
    230,853.69x = 318,492.54 × 135,325.53
  4. Step 4: Simplify right side
    230,853.69x = 43,100,171,776.55
  5. Step 5: Solve for x
    x = 43,100,171,776.55/230,853.69
  6. Step 6: Final answer
    x = 186,699.08

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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.