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Finding the Fourth Proportional to 310,615.53, 427,591.62 and 229,890.93

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Solution

The fourth proportional to 310,615.53, 427,591.62 and 229,890.93 is: 316,466.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,615.53 : 427,591.62 = 229,890.93 : x
  2. Step 2: Convert to fraction form
    310,615.53/427,591.62 = 229,890.93/x
  3. Step 3: Cross multiply
    310,615.53x = 427,591.62 × 229,890.93
  4. Step 4: Simplify right side
    310,615.53x = 98,299,435,182.01
  5. Step 5: Solve for x
    x = 98,299,435,182.01/310,615.53
  6. Step 6: Final answer
    x = 316,466.58

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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.