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Finding the Fourth Proportional to 524,320.12, 786,480.74 and 130,336.12

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Solution

The fourth proportional to 524,320.12, 786,480.74 and 130,336.12 is: 195,504.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,320.12 : 786,480.74 = 130,336.12 : x
  2. Step 2: Convert to fraction form
    524,320.12/786,480.74 = 130,336.12/x
  3. Step 3: Cross multiply
    524,320.12x = 786,480.74 × 130,336.12
  4. Step 4: Simplify right side
    524,320.12x = 102,506,848,106.33
  5. Step 5: Solve for x
    x = 102,506,848,106.33/524,320.12
  6. Step 6: Final answer
    x = 195,504.32

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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.