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Finding the Fourth Proportional to 306,300.55, 459,150.87 and 171,430.49

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Solution

The fourth proportional to 306,300.55, 459,150.87 and 171,430.49 is: 256,977.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,300.55 : 459,150.87 = 171,430.49 : x
  2. Step 2: Convert to fraction form
    306,300.55/459,150.87 = 171,430.49/x
  3. Step 3: Cross multiply
    306,300.55x = 459,150.87 × 171,430.49
  4. Step 4: Simplify right side
    306,300.55x = 78,712,456,332.27
  5. Step 5: Solve for x
    x = 78,712,456,332.27/306,300.55
  6. Step 6: Final answer
    x = 256,977.85

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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.