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Finding the Fourth Proportional to 313,407.64, 432,510.06 and 170,173.72

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Solution

The fourth proportional to 313,407.64, 432,510.06 and 170,173.72 is: 234,843.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,407.64 : 432,510.06 = 170,173.72 : x
  2. Step 2: Convert to fraction form
    313,407.64/432,510.06 = 170,173.72/x
  3. Step 3: Cross multiply
    313,407.64x = 432,510.06 × 170,173.72
  4. Step 4: Simplify right side
    313,407.64x = 73,601,845,847.62
  5. Step 5: Solve for x
    x = 73,601,845,847.62/313,407.64
  6. Step 6: Final answer
    x = 234,843.82

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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.