Home / 307,821.80-461,732.70-97,476.20

Finding the Fourth Proportional to 307,821.80, 461,732.70 and 97,476.20

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Solution

The fourth proportional to 307,821.80, 461,732.70 and 97,476.20 is: 146,214.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,821.80 : 461,732.70 = 97,476.20 : x
  2. Step 2: Convert to fraction form
    307,821.80/461,732.70 = 97,476.20/x
  3. Step 3: Cross multiply
    307,821.80x = 461,732.70 × 97,476.20
  4. Step 4: Simplify right side
    307,821.80x = 45,007,949,011.74
  5. Step 5: Solve for x
    x = 45,007,949,011.74/307,821.80
  6. Step 6: Final answer
    x = 146,214.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.