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Finding the Fourth Proportional to 372,076, 558,114.03 and 109,420

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Solution

The fourth proportional to 372,076, 558,114.03 and 109,420 is: 164,130.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,076 : 558,114.03 = 109,420 : x
  2. Step 2: Convert to fraction form
    372,076/558,114.03 = 109,420/x
  3. Step 3: Cross multiply
    372,076x = 558,114.03 × 109,420
  4. Step 4: Simplify right side
    372,076x = 61,068,837,162.60
  5. Step 5: Solve for x
    x = 61,068,837,162.60/372,076
  6. Step 6: Final answer
    x = 164,130.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.