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Finding the Fourth Proportional to 293,814.40, 440,721.60 and 210,870.40

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Solution

The fourth proportional to 293,814.40, 440,721.60 and 210,870.40 is: 316,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,814.40 : 440,721.60 = 210,870.40 : x
  2. Step 2: Convert to fraction form
    293,814.40/440,721.60 = 210,870.40/x
  3. Step 3: Cross multiply
    293,814.40x = 440,721.60 × 210,870.40
  4. Step 4: Simplify right side
    293,814.40x = 92,935,140,080.64
  5. Step 5: Solve for x
    x = 92,935,140,080.64/293,814.40
  6. Step 6: Final answer
    x = 316,305.60

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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.