Home / 303,132.17-454,699.78-78,476.85

Finding the Fourth Proportional to 303,132.17, 454,699.78 and 78,476.85

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Solution

The fourth proportional to 303,132.17, 454,699.78 and 78,476.85 is: 117,715.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,132.17 : 454,699.78 = 78,476.85 : x
  2. Step 2: Convert to fraction form
    303,132.17/454,699.78 = 78,476.85/x
  3. Step 3: Cross multiply
    303,132.17x = 454,699.78 × 78,476.85
  4. Step 4: Simplify right side
    303,132.17x = 35,683,406,233.90
  5. Step 5: Solve for x
    x = 35,683,406,233.90/303,132.17
  6. Step 6: Final answer
    x = 117,715.67

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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.