Home / 215,455.48-297,278.94-130,554.52

Finding the Fourth Proportional to 215,455.48, 297,278.94 and 130,554.52

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Solution

The fourth proportional to 215,455.48, 297,278.94 and 130,554.52 is: 180,135.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,455.48 : 297,278.94 = 130,554.52 : x
  2. Step 2: Convert to fraction form
    215,455.48/297,278.94 = 130,554.52/x
  3. Step 3: Cross multiply
    215,455.48x = 297,278.94 × 130,554.52
  4. Step 4: Simplify right side
    215,455.48x = 38,811,109,317.81
  5. Step 5: Solve for x
    x = 38,811,109,317.81/215,455.48
  6. Step 6: Final answer
    x = 180,135.17

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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.