Home / 509,269.47-763,901.16-130,189.60

Finding the Fourth Proportional to 509,269.47, 763,901.16 and 130,189.60

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Solution

The fourth proportional to 509,269.47, 763,901.16 and 130,189.60 is: 195,283.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,269.47 : 763,901.16 = 130,189.60 : x
  2. Step 2: Convert to fraction form
    509,269.47/763,901.16 = 130,189.60/x
  3. Step 3: Cross multiply
    509,269.47x = 763,901.16 × 130,189.60
  4. Step 4: Simplify right side
    509,269.47x = 99,451,986,459.94
  5. Step 5: Solve for x
    x = 99,451,986,459.94/509,269.47
  6. Step 6: Final answer
    x = 195,283.62

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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.