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Finding the Fourth Proportional to 509,150.84, 763,726.22 and 130,072.38

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Solution

The fourth proportional to 509,150.84, 763,726.22 and 130,072.38 is: 195,108.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,150.84 : 763,726.22 = 130,072.38 : x
  2. Step 2: Convert to fraction form
    509,150.84/763,726.22 = 130,072.38/x
  3. Step 3: Cross multiply
    509,150.84x = 763,726.22 × 130,072.38
  4. Step 4: Simplify right side
    509,150.84x = 99,339,688,373.20
  5. Step 5: Solve for x
    x = 99,339,688,373.20/509,150.84
  6. Step 6: Final answer
    x = 195,108.56

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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.