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Finding the Fourth Proportional to 247,256.32, 370,720.64 and 89,464

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Solution

The fourth proportional to 247,256.32, 370,720.64 and 89,464 is: 134,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,256.32 : 370,720.64 = 89,464 : x
  2. Step 2: Convert to fraction form
    247,256.32/370,720.64 = 89,464/x
  3. Step 3: Cross multiply
    247,256.32x = 370,720.64 × 89,464
  4. Step 4: Simplify right side
    247,256.32x = 33,166,151,336.96
  5. Step 5: Solve for x
    x = 33,166,151,336.96/247,256.32
  6. Step 6: Final answer
    x = 134,136.72

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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.