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Finding the Fourth Proportional to 216,045.40, 324,024.90 and 103,725.40

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Solution

The fourth proportional to 216,045.40, 324,024.90 and 103,725.40 is: 155,567.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,045.40 : 324,024.90 = 103,725.40 : x
  2. Step 2: Convert to fraction form
    216,045.40/324,024.90 = 103,725.40/x
  3. Step 3: Cross multiply
    216,045.40x = 324,024.90 × 103,725.40
  4. Step 4: Simplify right side
    216,045.40x = 33,609,612,362.46
  5. Step 5: Solve for x
    x = 33,609,612,362.46/216,045.40
  6. Step 6: Final answer
    x = 155,567.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.