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Finding the Fourth Proportional to 528,154.80, 792,279.84 and 149,079.72

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Solution

The fourth proportional to 528,154.80, 792,279.84 and 149,079.72 is: 223,633.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,154.80 : 792,279.84 = 149,079.72 : x
  2. Step 2: Convert to fraction form
    528,154.80/792,279.84 = 149,079.72/x
  3. Step 3: Cross multiply
    528,154.80x = 792,279.84 × 149,079.72
  4. Step 4: Simplify right side
    528,154.80x = 118,112,856,708.85
  5. Step 5: Solve for x
    x = 118,112,856,708.85/528,154.80
  6. Step 6: Final answer
    x = 223,633.03

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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.