Home / 215,385.07-297,226.47-134,857.00

Finding the Fourth Proportional to 215,385.07, 297,226.47 and 134,857.00

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Solution

The fourth proportional to 215,385.07, 297,226.47 and 134,857.00 is: 186,099.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,385.07 : 297,226.47 = 134,857.00 : x
  2. Step 2: Convert to fraction form
    215,385.07/297,226.47 = 134,857.00/x
  3. Step 3: Cross multiply
    215,385.07x = 297,226.47 × 134,857.00
  4. Step 4: Simplify right side
    215,385.07x = 40,083,068,511.57
  5. Step 5: Solve for x
    x = 40,083,068,511.57/215,385.07
  6. Step 6: Final answer
    x = 186,099.57

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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.