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Finding the Fourth Proportional to 344,005.80, 514,842.30 and 302,015.40

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Solution

The fourth proportional to 344,005.80, 514,842.30 and 302,015.40 is: 451,999.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,005.80 : 514,842.30 = 302,015.40 : x
  2. Step 2: Convert to fraction form
    344,005.80/514,842.30 = 302,015.40/x
  3. Step 3: Cross multiply
    344,005.80x = 514,842.30 × 302,015.40
  4. Step 4: Simplify right side
    344,005.80x = 155,490,303,171.42
  5. Step 5: Solve for x
    x = 155,490,303,171.42/344,005.80
  6. Step 6: Final answer
    x = 451,999.07

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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.