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Finding the Fourth Proportional to 171,347.70, 257,021.55 and 152,685.30

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Solution

The fourth proportional to 171,347.70, 257,021.55 and 152,685.30 is: 229,027.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,347.70 : 257,021.55 = 152,685.30 : x
  2. Step 2: Convert to fraction form
    171,347.70/257,021.55 = 152,685.30/x
  3. Step 3: Cross multiply
    171,347.70x = 257,021.55 × 152,685.30
  4. Step 4: Simplify right side
    171,347.70x = 39,243,412,468.22
  5. Step 5: Solve for x
    x = 39,243,412,468.22/171,347.70
  6. Step 6: Final answer
    x = 229,027.95

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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.