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Finding the Fourth Proportional to 186,255, 257,031.90 and 101,372.67

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Solution

The fourth proportional to 186,255, 257,031.90 and 101,372.67 is: 139,894.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,255 : 257,031.90 = 101,372.67 : x
  2. Step 2: Convert to fraction form
    186,255/257,031.90 = 101,372.67/x
  3. Step 3: Cross multiply
    186,255x = 257,031.90 × 101,372.67
  4. Step 4: Simplify right side
    186,255x = 26,056,009,978.17
  5. Step 5: Solve for x
    x = 26,056,009,978.17/186,255
  6. Step 6: Final answer
    x = 139,894.28

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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.