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Finding the Fourth Proportional to 313,647.86, 432,042.57 and 253,048.92

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Solution

The fourth proportional to 313,647.86, 432,042.57 and 253,048.92 is: 348,568.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,647.86 : 432,042.57 = 253,048.92 : x
  2. Step 2: Convert to fraction form
    313,647.86/432,042.57 = 253,048.92/x
  3. Step 3: Cross multiply
    313,647.86x = 432,042.57 × 253,048.92
  4. Step 4: Simplify right side
    313,647.86x = 109,327,905,732.52
  5. Step 5: Solve for x
    x = 109,327,905,732.52/313,647.86
  6. Step 6: Final answer
    x = 348,568.96

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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.