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Finding the Fourth Proportional to 442,293, 663,440.19 and 134,547.67

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Solution

The fourth proportional to 442,293, 663,440.19 and 134,547.67 is: 201,821.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,293 : 663,440.19 = 134,547.67 : x
  2. Step 2: Convert to fraction form
    442,293/663,440.19 = 134,547.67/x
  3. Step 3: Cross multiply
    442,293x = 663,440.19 × 134,547.67
  4. Step 4: Simplify right side
    442,293x = 89,264,331,748.86
  5. Step 5: Solve for x
    x = 89,264,331,748.86/442,293
  6. Step 6: Final answer
    x = 201,821.71

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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.