Home / 238,449.90-329,089.47-143,009.10

Finding the Fourth Proportional to 238,449.90, 329,089.47 and 143,009.10

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Solution

The fourth proportional to 238,449.90, 329,089.47 and 143,009.10 is: 197,369.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,449.90 : 329,089.47 = 143,009.10 : x
  2. Step 2: Convert to fraction form
    238,449.90/329,089.47 = 143,009.10/x
  3. Step 3: Cross multiply
    238,449.90x = 329,089.47 × 143,009.10
  4. Step 4: Simplify right side
    238,449.90x = 47,062,788,924.18
  5. Step 5: Solve for x
    x = 47,062,788,924.18/238,449.90
  6. Step 6: Final answer
    x = 197,369.72

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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.