Home / 307,612.08-461,479.68-130,118.40

Finding the Fourth Proportional to 307,612.08, 461,479.68 and 130,118.40

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Solution

The fourth proportional to 307,612.08, 461,479.68 and 130,118.40 is: 195,203.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,612.08 : 461,479.68 = 130,118.40 : x
  2. Step 2: Convert to fraction form
    307,612.08/461,479.68 = 130,118.40/x
  3. Step 3: Cross multiply
    307,612.08x = 461,479.68 × 130,118.40
  4. Step 4: Simplify right side
    307,612.08x = 60,046,997,594.11
  5. Step 5: Solve for x
    x = 60,046,997,594.11/307,612.08
  6. Step 6: Final answer
    x = 195,203.64

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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.