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Finding the Fourth Proportional to 237,988.64, 328,434 and 142,476.32

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Solution

The fourth proportional to 237,988.64, 328,434 and 142,476.32 is: 196,623.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,988.64 : 328,434 = 142,476.32 : x
  2. Step 2: Convert to fraction form
    237,988.64/328,434 = 142,476.32/x
  3. Step 3: Cross multiply
    237,988.64x = 328,434 × 142,476.32
  4. Step 4: Simplify right side
    237,988.64x = 46,794,067,682.88
  5. Step 5: Solve for x
    x = 46,794,067,682.88/237,988.64
  6. Step 6: Final answer
    x = 196,623.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.