Home / 335,080.13-500,207.67-287,178.75

Finding the Fourth Proportional to 335,080.13, 500,207.67 and 287,178.75

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Solution

The fourth proportional to 335,080.13, 500,207.67 and 287,178.75 is: 428,700.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,080.13 : 500,207.67 = 287,178.75 : x
  2. Step 2: Convert to fraction form
    335,080.13/500,207.67 = 287,178.75/x
  3. Step 3: Cross multiply
    335,080.13x = 500,207.67 × 287,178.75
  4. Step 4: Simplify right side
    335,080.13x = 143,649,013,411.01
  5. Step 5: Solve for x
    x = 143,649,013,411.01/335,080.13
  6. Step 6: Final answer
    x = 428,700.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.