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Finding the Fourth Proportional to 342,911.12, 473,200.88 and 189,938.98

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Solution

The fourth proportional to 342,911.12, 473,200.88 and 189,938.98 is: 262,106.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,911.12 : 473,200.88 = 189,938.98 : x
  2. Step 2: Convert to fraction form
    342,911.12/473,200.88 = 189,938.98/x
  3. Step 3: Cross multiply
    342,911.12x = 473,200.88 × 189,938.98
  4. Step 4: Simplify right side
    342,911.12x = 89,879,292,482.30
  5. Step 5: Solve for x
    x = 89,879,292,482.30/342,911.12
  6. Step 6: Final answer
    x = 262,106.67

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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.