Home / 380,069.22-524,459.79-257,311.87

Finding the Fourth Proportional to 380,069.22, 524,459.79 and 257,311.87

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Solution

The fourth proportional to 380,069.22, 524,459.79 and 257,311.87 is: 355,066.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,069.22 : 524,459.79 = 257,311.87 : x
  2. Step 2: Convert to fraction form
    380,069.22/524,459.79 = 257,311.87/x
  3. Step 3: Cross multiply
    380,069.22x = 524,459.79 × 257,311.87
  4. Step 4: Simplify right side
    380,069.22x = 134,949,729,304.71
  5. Step 5: Solve for x
    x = 134,949,729,304.71/380,069.22
  6. Step 6: Final answer
    x = 355,066.19

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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.