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Finding the Fourth Proportional to 288,887.24, 433,340.42 and 99,345.71

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Solution

The fourth proportional to 288,887.24, 433,340.42 and 99,345.71 is: 149,021.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,887.24 : 433,340.42 = 99,345.71 : x
  2. Step 2: Convert to fraction form
    288,887.24/433,340.42 = 99,345.71/x
  3. Step 3: Cross multiply
    288,887.24x = 433,340.42 × 99,345.71
  4. Step 4: Simplify right side
    288,887.24x = 43,050,509,033.17
  5. Step 5: Solve for x
    x = 43,050,509,033.17/288,887.24
  6. Step 6: Final answer
    x = 149,021.85

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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.