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Finding the Fourth Proportional to 349,031.84, 481,663.67 and 198,128.84

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Solution

The fourth proportional to 349,031.84, 481,663.67 and 198,128.84 is: 273,417.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,031.84 : 481,663.67 = 198,128.84 : x
  2. Step 2: Convert to fraction form
    349,031.84/481,663.67 = 198,128.84/x
  3. Step 3: Cross multiply
    349,031.84x = 481,663.67 × 198,128.84
  4. Step 4: Simplify right side
    349,031.84x = 95,431,460,808.28
  5. Step 5: Solve for x
    x = 95,431,460,808.28/349,031.84
  6. Step 6: Final answer
    x = 273,417.64

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1.5x scale

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.