Home / 313,316.86-432,385.10-170,076.90

Finding the Fourth Proportional to 313,316.86, 432,385.10 and 170,076.90

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Solution

The fourth proportional to 313,316.86, 432,385.10 and 170,076.90 is: 234,710.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,316.86 : 432,385.10 = 170,076.90 : x
  2. Step 2: Convert to fraction form
    313,316.86/432,385.10 = 170,076.90/x
  3. Step 3: Cross multiply
    313,316.86x = 432,385.10 × 170,076.90
  4. Step 4: Simplify right side
    313,316.86x = 73,538,717,839.38
  5. Step 5: Solve for x
    x = 73,538,717,839.38/313,316.86
  6. Step 6: Final answer
    x = 234,710.38

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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.