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Finding the Fourth Proportional to 509,167.86, 763,751.70 and 130,089.34

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Solution

The fourth proportional to 509,167.86, 763,751.70 and 130,089.34 is: 195,133.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,167.86 : 763,751.70 = 130,089.34 : x
  2. Step 2: Convert to fraction form
    509,167.86/763,751.70 = 130,089.34/x
  3. Step 3: Cross multiply
    509,167.86x = 763,751.70 × 130,089.34
  4. Step 4: Simplify right side
    509,167.86x = 99,355,955,531.57
  5. Step 5: Solve for x
    x = 99,355,955,531.57/509,167.86
  6. Step 6: Final answer
    x = 195,133.99

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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.