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Finding the Fourth Proportional to 253,659.62, 349,881.68 and 163,130.10

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Solution

The fourth proportional to 253,659.62, 349,881.68 and 163,130.10 is: 225,011.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,659.62 : 349,881.68 = 163,130.10 : x
  2. Step 2: Convert to fraction form
    253,659.62/349,881.68 = 163,130.10/x
  3. Step 3: Cross multiply
    253,659.62x = 349,881.68 × 163,130.10
  4. Step 4: Simplify right side
    253,659.62x = 57,076,232,630.92
  5. Step 5: Solve for x
    x = 57,076,232,630.92/253,659.62
  6. Step 6: Final answer
    x = 225,011.11

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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.