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Finding the Fourth Proportional to 363,340, 545,148.72 and 141,741.28

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Solution

The fourth proportional to 363,340, 545,148.72 and 141,741.28 is: 212,666.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,340 : 545,148.72 = 141,741.28 : x
  2. Step 2: Convert to fraction form
    363,340/545,148.72 = 141,741.28/x
  3. Step 3: Cross multiply
    363,340x = 545,148.72 × 141,741.28
  4. Step 4: Simplify right side
    363,340x = 77,270,077,363.16
  5. Step 5: Solve for x
    x = 77,270,077,363.16/363,340
  6. Step 6: Final answer
    x = 212,666.04

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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.