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Finding the Fourth Proportional to 370,211.08, 555,316.64 and 89,728.32

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Solution

The fourth proportional to 370,211.08, 555,316.64 and 89,728.32 is: 134,592.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,211.08 : 555,316.64 = 89,728.32 : x
  2. Step 2: Convert to fraction form
    370,211.08/555,316.64 = 89,728.32/x
  3. Step 3: Cross multiply
    370,211.08x = 555,316.64 × 89,728.32
  4. Step 4: Simplify right side
    370,211.08x = 49,827,629,175.24
  5. Step 5: Solve for x
    x = 49,827,629,175.24/370,211.08
  6. Step 6: Final answer
    x = 134,592.48

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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.