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Finding the Fourth Proportional to 385,152.48, 531,656.16 and 344,793.72

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Solution

The fourth proportional to 385,152.48, 531,656.16 and 344,793.72 is: 475,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,152.48 : 531,656.16 = 344,793.72 : x
  2. Step 2: Convert to fraction form
    385,152.48/531,656.16 = 344,793.72/x
  3. Step 3: Cross multiply
    385,152.48x = 531,656.16 × 344,793.72
  4. Step 4: Simplify right side
    385,152.48x = 183,311,705,167.32
  5. Step 5: Solve for x
    x = 183,311,705,167.32/385,152.48
  6. Step 6: Final answer
    x = 475,945.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.