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Finding the Fourth Proportional to 342,450.16, 472,555.56 and 191,518

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Solution

The fourth proportional to 342,450.16, 472,555.56 and 191,518 is: 264,280.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,450.16 : 472,555.56 = 191,518 : x
  2. Step 2: Convert to fraction form
    342,450.16/472,555.56 = 191,518/x
  3. Step 3: Cross multiply
    342,450.16x = 472,555.56 × 191,518
  4. Step 4: Simplify right side
    342,450.16x = 90,502,895,740.08
  5. Step 5: Solve for x
    x = 90,502,895,740.08/342,450.16
  6. Step 6: Final answer
    x = 264,280.49

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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.