Home / 307,746.40-461,911.20-263,423.20

Finding the Fourth Proportional to 307,746.40, 461,911.20 and 263,423.20

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Solution

The fourth proportional to 307,746.40, 461,911.20 and 263,423.20 is: 395,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,746.40 : 461,911.20 = 263,423.20 : x
  2. Step 2: Convert to fraction form
    307,746.40/461,911.20 = 263,423.20/x
  3. Step 3: Cross multiply
    307,746.40x = 461,911.20 × 263,423.20
  4. Step 4: Simplify right side
    307,746.40x = 121,678,126,419.84
  5. Step 5: Solve for x
    x = 121,678,126,419.84/307,746.40
  6. Step 6: Final answer
    x = 395,384.40

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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.