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Finding the Fourth Proportional to 265,407.76, 398,510.96 and 228,371.32

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Solution

The fourth proportional to 265,407.76, 398,510.96 and 228,371.32 is: 342,900.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,407.76 : 398,510.96 = 228,371.32 : x
  2. Step 2: Convert to fraction form
    265,407.76/398,510.96 = 228,371.32/x
  3. Step 3: Cross multiply
    265,407.76x = 398,510.96 × 228,371.32
  4. Step 4: Simplify right side
    265,407.76x = 91,008,473,969.67
  5. Step 5: Solve for x
    x = 91,008,473,969.67/265,407.76
  6. Step 6: Final answer
    x = 342,900.58

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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.