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Finding the Fourth Proportional to 238,903.40, 329,722.98 and 143,462.72

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Solution

The fourth proportional to 238,903.40, 329,722.98 and 143,462.72 is: 198,000.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,903.40 : 329,722.98 = 143,462.72 : x
  2. Step 2: Convert to fraction form
    238,903.40/329,722.98 = 143,462.72/x
  3. Step 3: Cross multiply
    238,903.40x = 329,722.98 × 143,462.72
  4. Step 4: Simplify right side
    238,903.40x = 47,302,955,557.31
  5. Step 5: Solve for x
    x = 47,302,955,557.31/238,903.40
  6. Step 6: Final answer
    x = 198,000.34

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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.