Home / 239,428.53-330,401.21-130,530.51

Finding the Fourth Proportional to 239,428.53, 330,401.21 and 130,530.51

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Solution

The fourth proportional to 239,428.53, 330,401.21 and 130,530.51 is: 180,126.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,428.53 : 330,401.21 = 130,530.51 : x
  2. Step 2: Convert to fraction form
    239,428.53/330,401.21 = 130,530.51/x
  3. Step 3: Cross multiply
    239,428.53x = 330,401.21 × 130,530.51
  4. Step 4: Simplify right side
    239,428.53x = 43,127,437,793.26
  5. Step 5: Solve for x
    x = 43,127,437,793.26/239,428.53
  6. Step 6: Final answer
    x = 180,126.56

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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.