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Finding the Fourth Proportional to 313,911.76, 433,210.80 and 170,671.36

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Solution

The fourth proportional to 313,911.76, 433,210.80 and 170,671.36 is: 235,533.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,911.76 : 433,210.80 = 170,671.36 : x
  2. Step 2: Convert to fraction form
    313,911.76/433,210.80 = 170,671.36/x
  3. Step 3: Cross multiply
    313,911.76x = 433,210.80 × 170,671.36
  4. Step 4: Simplify right side
    313,911.76x = 73,936,676,402.69
  5. Step 5: Solve for x
    x = 73,936,676,402.69/313,911.76
  6. Step 6: Final answer
    x = 235,533.31

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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.