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Finding the Fourth Proportional to 342,893.70, 514,632.15 and 153,645.30

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Solution

The fourth proportional to 342,893.70, 514,632.15 and 153,645.30 is: 230,598.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,893.70 : 514,632.15 = 153,645.30 : x
  2. Step 2: Convert to fraction form
    342,893.70/514,632.15 = 153,645.30/x
  3. Step 3: Cross multiply
    342,893.70x = 514,632.15 × 153,645.30
  4. Step 4: Simplify right side
    342,893.70x = 79,070,811,076.40
  5. Step 5: Solve for x
    x = 79,070,811,076.40/342,893.70
  6. Step 6: Final answer
    x = 230,598.61

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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.