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Finding the Fourth Proportional to 363,528, 545,341.68 and 126,835.92

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Solution

The fourth proportional to 363,528, 545,341.68 and 126,835.92 is: 190,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,528 : 545,341.68 = 126,835.92 : x
  2. Step 2: Convert to fraction form
    363,528/545,341.68 = 126,835.92/x
  3. Step 3: Cross multiply
    363,528x = 545,341.68 × 126,835.92
  4. Step 4: Simplify right side
    363,528x = 69,168,913,697.15
  5. Step 5: Solve for x
    x = 69,168,913,697.15/363,528
  6. Step 6: Final answer
    x = 190,271.21

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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.