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Finding the Fourth Proportional to 229,417.40, 316,540.62 and 133,869.56

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Solution

The fourth proportional to 229,417.40, 316,540.62 and 133,869.56 is: 184,707.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,417.40 : 316,540.62 = 133,869.56 : x
  2. Step 2: Convert to fraction form
    229,417.40/316,540.62 = 133,869.56/x
  3. Step 3: Cross multiply
    229,417.40x = 316,540.62 × 133,869.56
  4. Step 4: Simplify right side
    229,417.40x = 42,375,153,521.53
  5. Step 5: Solve for x
    x = 42,375,153,521.53/229,417.40
  6. Step 6: Final answer
    x = 184,707.67

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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.