Home / 520,172.37-780,285.56-165,214.17

Finding the Fourth Proportional to 520,172.37, 780,285.56 and 165,214.17

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Solution

The fourth proportional to 520,172.37, 780,285.56 and 165,214.17 is: 247,829.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,172.37 : 780,285.56 = 165,214.17 : x
  2. Step 2: Convert to fraction form
    520,172.37/780,285.56 = 165,214.17/x
  3. Step 3: Cross multiply
    520,172.37x = 780,285.56 × 165,214.17
  4. Step 4: Simplify right side
    520,172.37x = 128,914,230,332.31
  5. Step 5: Solve for x
    x = 128,914,230,332.31/520,172.37
  6. Step 6: Final answer
    x = 247,829.83

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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.