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Finding the Fourth Proportional to 537,752.81, 806,623.74 and 138,392.03

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Solution

The fourth proportional to 537,752.81, 806,623.74 and 138,392.03 is: 207,586.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,752.81 : 806,623.74 = 138,392.03 : x
  2. Step 2: Convert to fraction form
    537,752.81/806,623.74 = 138,392.03/x
  3. Step 3: Cross multiply
    537,752.81x = 806,623.74 × 138,392.03
  4. Step 4: Simplify right side
    537,752.81x = 111,630,296,824.79
  5. Step 5: Solve for x
    x = 111,630,296,824.79/537,752.81
  6. Step 6: Final answer
    x = 207,586.64

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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.