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Finding the Fourth Proportional to 340,907.52, 511,312.03 and 104,186.64

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Solution

The fourth proportional to 340,907.52, 511,312.03 and 104,186.64 is: 156,264.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,907.52 : 511,312.03 = 104,186.64 : x
  2. Step 2: Convert to fraction form
    340,907.52/511,312.03 = 104,186.64/x
  3. Step 3: Cross multiply
    340,907.52x = 511,312.03 × 104,186.64
  4. Step 4: Simplify right side
    340,907.52x = 53,271,882,397.28
  5. Step 5: Solve for x
    x = 53,271,882,397.28/340,907.52
  6. Step 6: Final answer
    x = 156,264.91

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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.