Home / 215,409.75-297,272.30-134,811.51

Finding the Fourth Proportional to 215,409.75, 297,272.30 and 134,811.51

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Solution

The fourth proportional to 215,409.75, 297,272.30 and 134,811.51 is: 186,044.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,409.75 : 297,272.30 = 134,811.51 : x
  2. Step 2: Convert to fraction form
    215,409.75/297,272.30 = 134,811.51/x
  3. Step 3: Cross multiply
    215,409.75x = 297,272.30 × 134,811.51
  4. Step 4: Simplify right side
    215,409.75x = 40,075,726,970.12
  5. Step 5: Solve for x
    x = 40,075,726,970.12/215,409.75
  6. Step 6: Final answer
    x = 186,044.16

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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.