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Finding the Fourth Proportional to 520,098.02, 780,243.52 and 165,016.10

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Solution

The fourth proportional to 520,098.02, 780,243.52 and 165,016.10 is: 247,554.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,098.02 : 780,243.52 = 165,016.10 : x
  2. Step 2: Convert to fraction form
    520,098.02/780,243.52 = 165,016.10/x
  3. Step 3: Cross multiply
    520,098.02x = 780,243.52 × 165,016.10
  4. Step 4: Simplify right side
    520,098.02x = 128,752,742,720.67
  5. Step 5: Solve for x
    x = 128,752,742,720.67/520,098.02
  6. Step 6: Final answer
    x = 247,554.76

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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.