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Finding the Fourth Proportional to 307,886.40, 462,175.20 and 238,075.20

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Solution

The fourth proportional to 307,886.40, 462,175.20 and 238,075.20 is: 357,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,886.40 : 462,175.20 = 238,075.20 : x
  2. Step 2: Convert to fraction form
    307,886.40/462,175.20 = 238,075.20/x
  3. Step 3: Cross multiply
    307,886.40x = 462,175.20 × 238,075.20
  4. Step 4: Simplify right side
    307,886.40x = 110,032,453,175.04
  5. Step 5: Solve for x
    x = 110,032,453,175.04/307,886.40
  6. Step 6: Final answer
    x = 357,380.04

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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.