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Finding the Fourth Proportional to 216,349.40, 298,560.53 and 119,559.78

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Solution

The fourth proportional to 216,349.40, 298,560.53 and 119,559.78 is: 164,991.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,349.40 : 298,560.53 = 119,559.78 : x
  2. Step 2: Convert to fraction form
    216,349.40/298,560.53 = 119,559.78/x
  3. Step 3: Cross multiply
    216,349.40x = 298,560.53 × 119,559.78
  4. Step 4: Simplify right side
    216,349.40x = 35,695,829,491.78
  5. Step 5: Solve for x
    x = 35,695,829,491.78/216,349.40
  6. Step 6: Final answer
    x = 164,991.58

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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.