Home / 265,576.32-398,482.18-139,186.50

Finding the Fourth Proportional to 265,576.32, 398,482.18 and 139,186.50

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Solution

The fourth proportional to 265,576.32, 398,482.18 and 139,186.50 is: 208,841.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,576.32 : 398,482.18 = 139,186.50 : x
  2. Step 2: Convert to fraction form
    265,576.32/398,482.18 = 139,186.50/x
  3. Step 3: Cross multiply
    265,576.32x = 398,482.18 × 139,186.50
  4. Step 4: Simplify right side
    265,576.32x = 55,463,339,946.57
  5. Step 5: Solve for x
    x = 55,463,339,946.57/265,576.32
  6. Step 6: Final answer
    x = 208,841.44

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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.