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Finding the Fourth Proportional to 340,271.56, 510,484.80 and 103,632.70

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Solution

The fourth proportional to 340,271.56, 510,484.80 and 103,632.70 is: 155,472.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,271.56 : 510,484.80 = 103,632.70 : x
  2. Step 2: Convert to fraction form
    340,271.56/510,484.80 = 103,632.70/x
  3. Step 3: Cross multiply
    340,271.56x = 510,484.80 × 103,632.70
  4. Step 4: Simplify right side
    340,271.56x = 52,902,918,132.96
  5. Step 5: Solve for x
    x = 52,902,918,132.96/340,271.56
  6. Step 6: Final answer
    x = 155,472.64

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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.