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Finding the Fourth Proportional to 313,417.69, 432,504.28 and 170,174.45

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Solution

The fourth proportional to 313,417.69, 432,504.28 and 170,174.45 is: 234,834.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,417.69 : 432,504.28 = 170,174.45 : x
  2. Step 2: Convert to fraction form
    313,417.69/432,504.28 = 170,174.45/x
  3. Step 3: Cross multiply
    313,417.69x = 432,504.28 × 170,174.45
  4. Step 4: Simplify right side
    313,417.69x = 73,601,177,971.65
  5. Step 5: Solve for x
    x = 73,601,177,971.65/313,417.69
  6. Step 6: Final answer
    x = 234,834.15

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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.