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Finding the Fourth Proportional to 310,337.36, 428,314.20 and 183,026.96

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Solution

The fourth proportional to 310,337.36, 428,314.20 and 183,026.96 is: 252,605.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,337.36 : 428,314.20 = 183,026.96 : x
  2. Step 2: Convert to fraction form
    310,337.36/428,314.20 = 183,026.96/x
  3. Step 3: Cross multiply
    310,337.36x = 428,314.20 × 183,026.96
  4. Step 4: Simplify right side
    310,337.36x = 78,393,045,950.83
  5. Step 5: Solve for x
    x = 78,393,045,950.83/310,337.36
  6. Step 6: Final answer
    x = 252,605.89

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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.