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Finding the Fourth Proportional to 307,510.01, 424,367.12 and 171,542.87

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Solution

The fourth proportional to 307,510.01, 424,367.12 and 171,542.87 is: 236,731.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,510.01 : 424,367.12 = 171,542.87 : x
  2. Step 2: Convert to fraction form
    307,510.01/424,367.12 = 171,542.87/x
  3. Step 3: Cross multiply
    307,510.01x = 424,367.12 × 171,542.87
  4. Step 4: Simplify right side
    307,510.01x = 72,797,152,005.46
  5. Step 5: Solve for x
    x = 72,797,152,005.46/307,510.01
  6. Step 6: Final answer
    x = 236,731.00

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1.5x scale

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.