Home / 215,309.32-297,218.90-153,260.21

Finding the Fourth Proportional to 215,309.32, 297,218.90 and 153,260.21

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Solution

The fourth proportional to 215,309.32, 297,218.90 and 153,260.21 is: 211,564.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,309.32 : 297,218.90 = 153,260.21 : x
  2. Step 2: Convert to fraction form
    215,309.32/297,218.90 = 153,260.21/x
  3. Step 3: Cross multiply
    215,309.32x = 297,218.90 × 153,260.21
  4. Step 4: Simplify right side
    215,309.32x = 45,551,832,156.17
  5. Step 5: Solve for x
    x = 45,551,832,156.17/215,309.32
  6. Step 6: Final answer
    x = 211,564.61

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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.