Home / 256,829.60-384,985.20-116,688.80

Finding the Fourth Proportional to 256,829.60, 384,985.20 and 116,688.80

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Solution

The fourth proportional to 256,829.60, 384,985.20 and 116,688.80 is: 174,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,829.60 : 384,985.20 = 116,688.80 : x
  2. Step 2: Convert to fraction form
    256,829.60/384,985.20 = 116,688.80/x
  3. Step 3: Cross multiply
    256,829.60x = 384,985.20 × 116,688.80
  4. Step 4: Simplify right side
    256,829.60x = 44,923,461,005.76
  5. Step 5: Solve for x
    x = 44,923,461,005.76/256,829.60
  6. Step 6: Final answer
    x = 174,915.43

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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.