Home / 306,056.10-458,865.45-137,438.40

Finding the Fourth Proportional to 306,056.10, 458,865.45 and 137,438.40

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Solution

The fourth proportional to 306,056.10, 458,865.45 and 137,438.40 is: 206,059.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,056.10 : 458,865.45 = 137,438.40 : x
  2. Step 2: Convert to fraction form
    306,056.10/458,865.45 = 137,438.40/x
  3. Step 3: Cross multiply
    306,056.10x = 458,865.45 × 137,438.40
  4. Step 4: Simplify right side
    306,056.10x = 63,065,733,263.28
  5. Step 5: Solve for x
    x = 63,065,733,263.28/306,056.10
  6. Step 6: Final answer
    x = 206,059.39

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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.