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Finding the Fourth Proportional to 391,290.56, 586,935.84 and 110,810.24

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Solution

The fourth proportional to 391,290.56, 586,935.84 and 110,810.24 is: 166,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,290.56 : 586,935.84 = 110,810.24 : x
  2. Step 2: Convert to fraction form
    391,290.56/586,935.84 = 110,810.24/x
  3. Step 3: Cross multiply
    391,290.56x = 586,935.84 × 110,810.24
  4. Step 4: Simplify right side
    391,290.56x = 65,038,501,295.00
  5. Step 5: Solve for x
    x = 65,038,501,295.00/391,290.56
  6. Step 6: Final answer
    x = 166,215.36

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1.5x scale

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.