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Finding the Fourth Proportional to 353,988.84, 488,026.98 and 342,981.48

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Solution

The fourth proportional to 353,988.84, 488,026.98 and 342,981.48 is: 472,851.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,988.84 : 488,026.98 = 342,981.48 : x
  2. Step 2: Convert to fraction form
    353,988.84/488,026.98 = 342,981.48/x
  3. Step 3: Cross multiply
    353,988.84x = 488,026.98 × 342,981.48
  4. Step 4: Simplify right side
    353,988.84x = 167,384,215,880.33
  5. Step 5: Solve for x
    x = 167,384,215,880.33/353,988.84
  6. Step 6: Final answer
    x = 472,851.67

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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.