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Finding the Fourth Proportional to 524,321.40, 786,338.46 and 145,151.40

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Solution

The fourth proportional to 524,321.40, 786,338.46 and 145,151.40 is: 217,687.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,321.40 : 786,338.46 = 145,151.40 : x
  2. Step 2: Convert to fraction form
    524,321.40/786,338.46 = 145,151.40/x
  3. Step 3: Cross multiply
    524,321.40x = 786,338.46 × 145,151.40
  4. Step 4: Simplify right side
    524,321.40x = 114,138,128,342.84
  5. Step 5: Solve for x
    x = 114,138,128,342.84/524,321.40
  6. Step 6: Final answer
    x = 217,687.34

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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.