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Finding the Fourth Proportional to 392,036.52, 540,985.46 and 230,860.42

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Solution

The fourth proportional to 392,036.52, 540,985.46 and 230,860.42 is: 318,572.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,036.52 : 540,985.46 = 230,860.42 : x
  2. Step 2: Convert to fraction form
    392,036.52/540,985.46 = 230,860.42/x
  3. Step 3: Cross multiply
    392,036.52x = 540,985.46 × 230,860.42
  4. Step 4: Simplify right side
    392,036.52x = 124,892,130,509.49
  5. Step 5: Solve for x
    x = 124,892,130,509.49/392,036.52
  6. Step 6: Final answer
    x = 318,572.69

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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.