Home / 309,636.36-427,293.04-180,649.83

Finding the Fourth Proportional to 309,636.36, 427,293.04 and 180,649.83

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Solution

The fourth proportional to 309,636.36, 427,293.04 and 180,649.83 is: 249,293.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,636.36 : 427,293.04 = 180,649.83 : x
  2. Step 2: Convert to fraction form
    309,636.36/427,293.04 = 180,649.83/x
  3. Step 3: Cross multiply
    309,636.36x = 427,293.04 × 180,649.83
  4. Step 4: Simplify right side
    309,636.36x = 77,190,415,036.18
  5. Step 5: Solve for x
    x = 77,190,415,036.18/309,636.36
  6. Step 6: Final answer
    x = 249,293.77

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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.