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Finding the Fourth Proportional to 226,355.78, 312,352.69 and 130,868.63

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Solution

The fourth proportional to 226,355.78, 312,352.69 and 130,868.63 is: 180,588.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,355.78 : 312,352.69 = 130,868.63 : x
  2. Step 2: Convert to fraction form
    226,355.78/312,352.69 = 130,868.63/x
  3. Step 3: Cross multiply
    226,355.78x = 312,352.69 × 130,868.63
  4. Step 4: Simplify right side
    226,355.78x = 40,877,166,728.18
  5. Step 5: Solve for x
    x = 40,877,166,728.18/226,355.78
  6. Step 6: Final answer
    x = 180,588.13

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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.