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Finding the Fourth Proportional to 316,487.16, 436,741.34 and 180,565.11

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Solution

The fourth proportional to 316,487.16, 436,741.34 and 180,565.11 is: 249,173.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,487.16 : 436,741.34 = 180,565.11 : x
  2. Step 2: Convert to fraction form
    316,487.16/436,741.34 = 180,565.11/x
  3. Step 3: Cross multiply
    316,487.16x = 436,741.34 × 180,565.11
  4. Step 4: Simplify right side
    316,487.16x = 78,860,247,195.82
  5. Step 5: Solve for x
    x = 78,860,247,195.82/316,487.16
  6. Step 6: Final answer
    x = 249,173.61

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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.