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Finding the Fourth Proportional to 343,246.40, 514,869.60 and 296,007.20

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Solution

The fourth proportional to 343,246.40, 514,869.60 and 296,007.20 is: 444,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,246.40 : 514,869.60 = 296,007.20 : x
  2. Step 2: Convert to fraction form
    343,246.40/514,869.60 = 296,007.20/x
  3. Step 3: Cross multiply
    343,246.40x = 514,869.60 × 296,007.20
  4. Step 4: Simplify right side
    343,246.40x = 152,405,108,661.12
  5. Step 5: Solve for x
    x = 152,405,108,661.12/343,246.40
  6. Step 6: Final answer
    x = 444,010.80

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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.