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Finding the Fourth Proportional to 545,745.40, 818,472.30 and 166,665.40

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Solution

The fourth proportional to 545,745.40, 818,472.30 and 166,665.40 is: 249,953.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,745.40 : 818,472.30 = 166,665.40 : x
  2. Step 2: Convert to fraction form
    545,745.40/818,472.30 = 166,665.40/x
  3. Step 3: Cross multiply
    545,745.40x = 818,472.30 × 166,665.40
  4. Step 4: Simplify right side
    545,745.40x = 136,411,013,268.42
  5. Step 5: Solve for x
    x = 136,411,013,268.42/545,745.40
  6. Step 6: Final answer
    x = 249,953.57

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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.