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Finding the Fourth Proportional to 366,028.10, 549,042.15 and 129,368.90

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Solution

The fourth proportional to 366,028.10, 549,042.15 and 129,368.90 is: 194,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,028.10 : 549,042.15 = 129,368.90 : x
  2. Step 2: Convert to fraction form
    366,028.10/549,042.15 = 129,368.90/x
  3. Step 3: Cross multiply
    366,028.10x = 549,042.15 × 129,368.90
  4. Step 4: Simplify right side
    366,028.10x = 71,028,978,999.14
  5. Step 5: Solve for x
    x = 71,028,978,999.14/366,028.10
  6. Step 6: Final answer
    x = 194,053.35

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1.5x scale

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.