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Finding the Fourth Proportional to 520,095.02, 780,239.02 and 165,013.10

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Solution

The fourth proportional to 520,095.02, 780,239.02 and 165,013.10 is: 247,550.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,095.02 : 780,239.02 = 165,013.10 : x
  2. Step 2: Convert to fraction form
    520,095.02/780,239.02 = 165,013.10/x
  3. Step 3: Cross multiply
    520,095.02x = 780,239.02 × 165,013.10
  4. Step 4: Simplify right side
    520,095.02x = 128,749,659,431.16
  5. Step 5: Solve for x
    x = 128,749,659,431.16/520,095.02
  6. Step 6: Final answer
    x = 247,550.26

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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.