Home / 263,688.63-363,889.64-142,830.23

Finding the Fourth Proportional to 263,688.63, 363,889.64 and 142,830.23

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Solution

The fourth proportional to 263,688.63, 363,889.64 and 142,830.23 is: 197,105.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,688.63 : 363,889.64 = 142,830.23 : x
  2. Step 2: Convert to fraction form
    263,688.63/363,889.64 = 142,830.23/x
  3. Step 3: Cross multiply
    263,688.63x = 363,889.64 × 142,830.23
  4. Step 4: Simplify right side
    263,688.63x = 51,974,438,442.22
  5. Step 5: Solve for x
    x = 51,974,438,442.22/263,688.63
  6. Step 6: Final answer
    x = 197,105.35

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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.