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Finding the Fourth Proportional to 338,515.70, 507,773.55 and 307,411.70

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Solution

The fourth proportional to 338,515.70, 507,773.55 and 307,411.70 is: 461,117.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,515.70 : 507,773.55 = 307,411.70 : x
  2. Step 2: Convert to fraction form
    338,515.70/507,773.55 = 307,411.70/x
  3. Step 3: Cross multiply
    338,515.70x = 507,773.55 × 307,411.70
  4. Step 4: Simplify right side
    338,515.70x = 156,095,530,220.54
  5. Step 5: Solve for x
    x = 156,095,530,220.54/338,515.70
  6. Step 6: Final answer
    x = 461,117.55

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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.