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Finding the Fourth Proportional to 536,749.80, 805,124.18 and 137,389.93

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Solution

The fourth proportional to 536,749.80, 805,124.18 and 137,389.93 is: 206,084.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,749.80 : 805,124.18 = 137,389.93 : x
  2. Step 2: Convert to fraction form
    536,749.80/805,124.18 = 137,389.93/x
  3. Step 3: Cross multiply
    536,749.80x = 805,124.18 × 137,389.93
  4. Step 4: Simplify right side
    536,749.80x = 110,615,954,731.51
  5. Step 5: Solve for x
    x = 110,615,954,731.51/536,749.80
  6. Step 6: Final answer
    x = 206,084.76

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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.