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Finding the Fourth Proportional to 313,432.32, 432,525.42 and 170,189.40

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Solution

The fourth proportional to 313,432.32, 432,525.42 and 170,189.40 is: 234,855.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,432.32 : 432,525.42 = 170,189.40 : x
  2. Step 2: Convert to fraction form
    313,432.32/432,525.42 = 170,189.40/x
  3. Step 3: Cross multiply
    313,432.32x = 432,525.42 × 170,189.40
  4. Step 4: Simplify right side
    313,432.32x = 73,611,241,714.55
  5. Step 5: Solve for x
    x = 73,611,241,714.55/313,432.32
  6. Step 6: Final answer
    x = 234,855.30

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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.