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Finding the Fourth Proportional to 340,318.63, 510,554.76 and 112,613.67

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Solution

The fourth proportional to 340,318.63, 510,554.76 and 112,613.67 is: 168,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,318.63 : 510,554.76 = 112,613.67 : x
  2. Step 2: Convert to fraction form
    340,318.63/510,554.76 = 112,613.67/x
  3. Step 3: Cross multiply
    340,318.63x = 510,554.76 × 112,613.67
  4. Step 4: Simplify right side
    340,318.63x = 57,495,442,706.80
  5. Step 5: Solve for x
    x = 57,495,442,706.80/340,318.63
  6. Step 6: Final answer
    x = 168,945.92

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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.