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Finding the Fourth Proportional to 310,610.53, 427,584.72 and 229,885.93

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Solution

The fourth proportional to 310,610.53, 427,584.72 and 229,885.93 is: 316,459.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,610.53 : 427,584.72 = 229,885.93 : x
  2. Step 2: Convert to fraction form
    310,610.53/427,584.72 = 229,885.93/x
  3. Step 3: Cross multiply
    310,610.53x = 427,584.72 × 229,885.93
  4. Step 4: Simplify right side
    310,610.53x = 98,295,711,010.99
  5. Step 5: Solve for x
    x = 98,295,711,010.99/310,610.53
  6. Step 6: Final answer
    x = 316,459.69

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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.