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Finding the Fourth Proportional to 338,887.12, 507,529.12 and 294,271.40

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Solution

The fourth proportional to 338,887.12, 507,529.12 and 294,271.40 is: 440,711.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,887.12 : 507,529.12 = 294,271.40 : x
  2. Step 2: Convert to fraction form
    338,887.12/507,529.12 = 294,271.40/x
  3. Step 3: Cross multiply
    338,887.12x = 507,529.12 × 294,271.40
  4. Step 4: Simplify right side
    338,887.12x = 149,351,304,683.17
  5. Step 5: Solve for x
    x = 149,351,304,683.17/338,887.12
  6. Step 6: Final answer
    x = 440,711.07

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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.