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Finding the Fourth Proportional to 305,952.45, 459,092.70 and 128,477.40

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Solution

The fourth proportional to 305,952.45, 459,092.70 and 128,477.40 is: 192,784.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,952.45 : 459,092.70 = 128,477.40 : x
  2. Step 2: Convert to fraction form
    305,952.45/459,092.70 = 128,477.40/x
  3. Step 3: Cross multiply
    305,952.45x = 459,092.70 × 128,477.40
  4. Step 4: Simplify right side
    305,952.45x = 58,983,036,454.98
  5. Step 5: Solve for x
    x = 58,983,036,454.98/305,952.45
  6. Step 6: Final answer
    x = 192,784.98

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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.