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Finding the Fourth Proportional to 238,012.76, 328,188.30 and 151,856.48

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Solution

The fourth proportional to 238,012.76, 328,188.30 and 151,856.48 is: 209,390.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,012.76 : 328,188.30 = 151,856.48 : x
  2. Step 2: Convert to fraction form
    238,012.76/328,188.30 = 151,856.48/x
  3. Step 3: Cross multiply
    238,012.76x = 328,188.30 × 151,856.48
  4. Step 4: Simplify right side
    238,012.76x = 49,837,520,015.18
  5. Step 5: Solve for x
    x = 49,837,520,015.18/238,012.76
  6. Step 6: Final answer
    x = 209,390.12

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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.