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Finding the Fourth Proportional to 508,282.12, 762,428.64 and 153,299.21

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Solution

The fourth proportional to 508,282.12, 762,428.64 and 153,299.21 is: 229,950.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,282.12 : 762,428.64 = 153,299.21 : x
  2. Step 2: Convert to fraction form
    508,282.12/762,428.64 = 153,299.21/x
  3. Step 3: Cross multiply
    508,282.12x = 762,428.64 × 153,299.21
  4. Step 4: Simplify right side
    508,282.12x = 116,879,708,193.37
  5. Step 5: Solve for x
    x = 116,879,708,193.37/508,282.12
  6. Step 6: Final answer
    x = 229,950.46

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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.