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Finding the Fourth Proportional to 243,999.60, 365,999.40 and 173,140.80

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Solution

The fourth proportional to 243,999.60, 365,999.40 and 173,140.80 is: 259,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,999.60 : 365,999.40 = 173,140.80 : x
  2. Step 2: Convert to fraction form
    243,999.60/365,999.40 = 173,140.80/x
  3. Step 3: Cross multiply
    243,999.60x = 365,999.40 × 173,140.80
  4. Step 4: Simplify right side
    243,999.60x = 63,369,428,915.52
  5. Step 5: Solve for x
    x = 63,369,428,915.52/243,999.60
  6. Step 6: Final answer
    x = 259,711.20

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1.5x scale

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.