Home / 265,888.32-398,586.24-139,502.40

Finding the Fourth Proportional to 265,888.32, 398,586.24 and 139,502.40

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Solution

The fourth proportional to 265,888.32, 398,586.24 and 139,502.40 is: 209,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,888.32 : 398,586.24 = 139,502.40 : x
  2. Step 2: Convert to fraction form
    265,888.32/398,586.24 = 139,502.40/x
  3. Step 3: Cross multiply
    265,888.32x = 398,586.24 × 139,502.40
  4. Step 4: Simplify right side
    265,888.32x = 55,603,737,086.98
  5. Step 5: Solve for x
    x = 55,603,737,086.98/265,888.32
  6. Step 6: Final answer
    x = 209,124.41

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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.