Home / 307,789.20-424,925.76-234,617.64

Finding the Fourth Proportional to 307,789.20, 424,925.76 and 234,617.64

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Solution

The fourth proportional to 307,789.20, 424,925.76 and 234,617.64 is: 323,907.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,789.20 : 424,925.76 = 234,617.64 : x
  2. Step 2: Convert to fraction form
    307,789.20/424,925.76 = 234,617.64/x
  3. Step 3: Cross multiply
    307,789.20x = 424,925.76 × 234,617.64
  4. Step 4: Simplify right side
    307,789.20x = 99,695,078,986.41
  5. Step 5: Solve for x
    x = 99,695,078,986.41/307,789.20
  6. Step 6: Final answer
    x = 323,907.01

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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.