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Finding the Fourth Proportional to 313,760.79, 432,992.66 and 170,520.93

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Solution

The fourth proportional to 313,760.79, 432,992.66 and 170,520.93 is: 235,320.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,760.79 : 432,992.66 = 170,520.93 : x
  2. Step 2: Convert to fraction form
    313,760.79/432,992.66 = 170,520.93/x
  3. Step 3: Cross multiply
    313,760.79x = 432,992.66 × 170,520.93
  4. Step 4: Simplify right side
    313,760.79x = 73,834,310,213.77
  5. Step 5: Solve for x
    x = 73,834,310,213.77/313,760.79
  6. Step 6: Final answer
    x = 235,320.39

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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.