Home / 307,125.36-423,833.96-178,088.88

Finding the Fourth Proportional to 307,125.36, 423,833.96 and 178,088.88

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Solution

The fourth proportional to 307,125.36, 423,833.96 and 178,088.88 is: 245,763.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,125.36 : 423,833.96 = 178,088.88 : x
  2. Step 2: Convert to fraction form
    307,125.36/423,833.96 = 178,088.88/x
  3. Step 3: Cross multiply
    307,125.36x = 423,833.96 × 178,088.88
  4. Step 4: Simplify right side
    307,125.36x = 75,480,115,242.36
  5. Step 5: Solve for x
    x = 75,480,115,242.36/307,125.36
  6. Step 6: Final answer
    x = 245,763.21

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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.