Home / 305,333.10-457,999.65-210,854.70

Finding the Fourth Proportional to 305,333.10, 457,999.65 and 210,854.70

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Solution

The fourth proportional to 305,333.10, 457,999.65 and 210,854.70 is: 316,282.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,333.10 : 457,999.65 = 210,854.70 : x
  2. Step 2: Convert to fraction form
    305,333.10/457,999.65 = 210,854.70/x
  3. Step 3: Cross multiply
    305,333.10x = 457,999.65 × 210,854.70
  4. Step 4: Simplify right side
    305,333.10x = 96,571,378,800.86
  5. Step 5: Solve for x
    x = 96,571,378,800.86/305,333.10
  6. Step 6: Final answer
    x = 316,282.05

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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.