Home / 229,319.50-316,409.96-138,673.58

Finding the Fourth Proportional to 229,319.50, 316,409.96 and 138,673.58

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Solution

The fourth proportional to 229,319.50, 316,409.96 and 138,673.58 is: 191,338.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,319.50 : 316,409.96 = 138,673.58 : x
  2. Step 2: Convert to fraction form
    229,319.50/316,409.96 = 138,673.58/x
  3. Step 3: Cross multiply
    229,319.50x = 316,409.96 × 138,673.58
  4. Step 4: Simplify right side
    229,319.50x = 43,877,701,900.86
  5. Step 5: Solve for x
    x = 43,877,701,900.86/229,319.50
  6. Step 6: Final answer
    x = 191,338.73

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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.