Home / 209,280.28-314,117.70-76,289.08

Finding the Fourth Proportional to 209,280.28, 314,117.70 and 76,289.08

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Solution

The fourth proportional to 209,280.28, 314,117.70 and 76,289.08 is: 114,505.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,280.28 : 314,117.70 = 76,289.08 : x
  2. Step 2: Convert to fraction form
    209,280.28/314,117.70 = 76,289.08/x
  3. Step 3: Cross multiply
    209,280.28x = 314,117.70 × 76,289.08
  4. Step 4: Simplify right side
    209,280.28x = 23,963,750,344.72
  5. Step 5: Solve for x
    x = 23,963,750,344.72/209,280.28
  6. Step 6: Final answer
    x = 114,505.53

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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.