Home / 455,031.35-682,547.32-188,720.36

Finding the Fourth Proportional to 455,031.35, 682,547.32 and 188,720.36

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Solution

The fourth proportional to 455,031.35, 682,547.32 and 188,720.36 is: 283,080.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,031.35 : 682,547.32 = 188,720.36 : x
  2. Step 2: Convert to fraction form
    455,031.35/682,547.32 = 188,720.36/x
  3. Step 3: Cross multiply
    455,031.35x = 682,547.32 × 188,720.36
  4. Step 4: Simplify right side
    455,031.35x = 128,810,572,534.70
  5. Step 5: Solve for x
    x = 128,810,572,534.70/455,031.35
  6. Step 6: Final answer
    x = 283,080.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.