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Finding the Fourth Proportional to 364,037.52, 545,682.12 and 139,345.20

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Solution

The fourth proportional to 364,037.52, 545,682.12 and 139,345.20 is: 208,874.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,037.52 : 545,682.12 = 139,345.20 : x
  2. Step 2: Convert to fraction form
    364,037.52/545,682.12 = 139,345.20/x
  3. Step 3: Cross multiply
    364,037.52x = 545,682.12 × 139,345.20
  4. Step 4: Simplify right side
    364,037.52x = 76,038,184,147.82
  5. Step 5: Solve for x
    x = 76,038,184,147.82/364,037.52
  6. Step 6: Final answer
    x = 208,874.58

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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.