Home / 438,059.60-657,089.40-122,541.20

Finding the Fourth Proportional to 438,059.60, 657,089.40 and 122,541.20

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Solution

The fourth proportional to 438,059.60, 657,089.40 and 122,541.20 is: 183,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,059.60 : 657,089.40 = 122,541.20 : x
  2. Step 2: Convert to fraction form
    438,059.60/657,089.40 = 122,541.20/x
  3. Step 3: Cross multiply
    438,059.60x = 657,089.40 × 122,541.20
  4. Step 4: Simplify right side
    438,059.60x = 80,520,523,583.28
  5. Step 5: Solve for x
    x = 80,520,523,583.28/438,059.60
  6. Step 6: Final answer
    x = 183,811.80

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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.