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Finding the Fourth Proportional to 229,273.30, 316,434.80 and 133,779.76

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Solution

The fourth proportional to 229,273.30, 316,434.80 and 133,779.76 is: 184,638.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,273.30 : 316,434.80 = 133,779.76 : x
  2. Step 2: Convert to fraction form
    229,273.30/316,434.80 = 133,779.76/x
  3. Step 3: Cross multiply
    229,273.30x = 316,434.80 × 133,779.76
  4. Step 4: Simplify right side
    229,273.30x = 42,332,571,599.65
  5. Step 5: Solve for x
    x = 42,332,571,599.65/229,273.30
  6. Step 6: Final answer
    x = 184,638.04

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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.