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Finding the Fourth Proportional to 392,007.04, 540,953.76 and 230,868.80

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Solution

The fourth proportional to 392,007.04, 540,953.76 and 230,868.80 is: 318,589.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,007.04 : 540,953.76 = 230,868.80 : x
  2. Step 2: Convert to fraction form
    392,007.04/540,953.76 = 230,868.80/x
  3. Step 3: Cross multiply
    392,007.04x = 540,953.76 × 230,868.80
  4. Step 4: Simplify right side
    392,007.04x = 124,889,345,426.69
  5. Step 5: Solve for x
    x = 124,889,345,426.69/392,007.04
  6. Step 6: Final answer
    x = 318,589.55

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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.