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Finding the Fourth Proportional to 307,415.80, 461,210.10 and 130,007.80

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Solution

The fourth proportional to 307,415.80, 461,210.10 and 130,007.80 is: 195,048.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,415.80 : 461,210.10 = 130,007.80 : x
  2. Step 2: Convert to fraction form
    307,415.80/461,210.10 = 130,007.80/x
  3. Step 3: Cross multiply
    307,415.80x = 461,210.10 × 130,007.80
  4. Step 4: Simplify right side
    307,415.80x = 59,960,910,438.78
  5. Step 5: Solve for x
    x = 59,960,910,438.78/307,415.80
  6. Step 6: Final answer
    x = 195,048.24

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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.