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Finding the Fourth Proportional to 508,911.90, 762,205.23 and 242,859.30

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Solution

The fourth proportional to 508,911.90, 762,205.23 and 242,859.30 is: 363,734.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,911.90 : 762,205.23 = 242,859.30 : x
  2. Step 2: Convert to fraction form
    508,911.90/762,205.23 = 242,859.30/x
  3. Step 3: Cross multiply
    508,911.90x = 762,205.23 × 242,859.30
  4. Step 4: Simplify right side
    508,911.90x = 185,108,628,614.14
  5. Step 5: Solve for x
    x = 185,108,628,614.14/508,911.90
  6. Step 6: Final answer
    x = 363,734.13

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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.