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Finding the Fourth Proportional to 391,462.07, 540,192.08 and 230,285.97

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Solution

The fourth proportional to 391,462.07, 540,192.08 and 230,285.97 is: 317,779.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,462.07 : 540,192.08 = 230,285.97 : x
  2. Step 2: Convert to fraction form
    391,462.07/540,192.08 = 230,285.97/x
  3. Step 3: Cross multiply
    391,462.07x = 540,192.08 × 230,285.97
  4. Step 4: Simplify right side
    391,462.07x = 124,398,658,364.57
  5. Step 5: Solve for x
    x = 124,398,658,364.57/391,462.07
  6. Step 6: Final answer
    x = 317,779.60

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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.