Home / 239,412.50-330,390.24-131,980.16

Finding the Fourth Proportional to 239,412.50, 330,390.24 and 131,980.16

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Solution

The fourth proportional to 239,412.50, 330,390.24 and 131,980.16 is: 182,133.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,412.50 : 330,390.24 = 131,980.16 : x
  2. Step 2: Convert to fraction form
    239,412.50/330,390.24 = 131,980.16/x
  3. Step 3: Cross multiply
    239,412.50x = 330,390.24 × 131,980.16
  4. Step 4: Simplify right side
    239,412.50x = 43,604,956,737.64
  5. Step 5: Solve for x
    x = 43,604,956,737.64/239,412.50
  6. Step 6: Final answer
    x = 182,133.17

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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.