Home / 239,437.18-330,410.03-137,455.91

Finding the Fourth Proportional to 239,437.18, 330,410.03 and 137,455.91

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Solution

The fourth proportional to 239,437.18, 330,410.03 and 137,455.91 is: 189,681.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,437.18 : 330,410.03 = 137,455.91 : x
  2. Step 2: Convert to fraction form
    239,437.18/330,410.03 = 137,455.91/x
  3. Step 3: Cross multiply
    239,437.18x = 330,410.03 × 137,455.91
  4. Step 4: Simplify right side
    239,437.18x = 45,416,811,346.78
  5. Step 5: Solve for x
    x = 45,416,811,346.78/239,437.18
  6. Step 6: Final answer
    x = 189,681.53

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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.