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Finding the Fourth Proportional to 618,134.10, 926,758.35 and 238,730.10

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Solution

The fourth proportional to 618,134.10, 926,758.35 and 238,730.10 is: 357,924.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,134.10 : 926,758.35 = 238,730.10 : x
  2. Step 2: Convert to fraction form
    618,134.10/926,758.35 = 238,730.10/x
  3. Step 3: Cross multiply
    618,134.10x = 926,758.35 × 238,730.10
  4. Step 4: Simplify right side
    618,134.10x = 221,245,113,571.34
  5. Step 5: Solve for x
    x = 221,245,113,571.34/618,134.10
  6. Step 6: Final answer
    x = 357,924.14

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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.