Home / 307,191.15-423,799.49-186,288.32

Finding the Fourth Proportional to 307,191.15, 423,799.49 and 186,288.32

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Solution

The fourth proportional to 307,191.15, 423,799.49 and 186,288.32 is: 257,002.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,191.15 : 423,799.49 = 186,288.32 : x
  2. Step 2: Convert to fraction form
    307,191.15/423,799.49 = 186,288.32/x
  3. Step 3: Cross multiply
    307,191.15x = 423,799.49 × 186,288.32
  4. Step 4: Simplify right side
    307,191.15x = 78,948,896,534.18
  5. Step 5: Solve for x
    x = 78,948,896,534.18/307,191.15
  6. Step 6: Final answer
    x = 257,002.51

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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.