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Finding the Fourth Proportional to 243,647.31, 365,802.54 and 137,106.54

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Solution

The fourth proportional to 243,647.31, 365,802.54 and 137,106.54 is: 205,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,647.31 : 365,802.54 = 137,106.54 : x
  2. Step 2: Convert to fraction form
    243,647.31/365,802.54 = 137,106.54/x
  3. Step 3: Cross multiply
    243,647.31x = 365,802.54 × 137,106.54
  4. Step 4: Simplify right side
    243,647.31x = 50,153,920,582.61
  5. Step 5: Solve for x
    x = 50,153,920,582.61/243,647.31
  6. Step 6: Final answer
    x = 205,846.40

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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.