Home / 215,808.80-297,764.88-130,923.68

Finding the Fourth Proportional to 215,808.80, 297,764.88 and 130,923.68

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Solution

The fourth proportional to 215,808.80, 297,764.88 and 130,923.68 is: 180,643.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,808.80 : 297,764.88 = 130,923.68 : x
  2. Step 2: Convert to fraction form
    215,808.80/297,764.88 = 130,923.68/x
  3. Step 3: Cross multiply
    215,808.80x = 297,764.88 × 130,923.68
  4. Step 4: Simplify right side
    215,808.80x = 38,984,473,864.36
  5. Step 5: Solve for x
    x = 38,984,473,864.36/215,808.80
  6. Step 6: Final answer
    x = 180,643.58

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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.