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Finding the Fourth Proportional to 229,785.87, 316,881.85 and 153,308.08

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Solution

The fourth proportional to 229,785.87, 316,881.85 and 153,308.08 is: 211,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,785.87 : 316,881.85 = 153,308.08 : x
  2. Step 2: Convert to fraction form
    229,785.87/316,881.85 = 153,308.08/x
  3. Step 3: Cross multiply
    229,785.87x = 316,881.85 × 153,308.08
  4. Step 4: Simplify right side
    229,785.87x = 48,580,548,010.35
  5. Step 5: Solve for x
    x = 48,580,548,010.35/229,785.87
  6. Step 6: Final answer
    x = 211,416.60

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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.