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Finding the Fourth Proportional to 239,315.58, 330,256.80 and 137,332.92

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Solution

The fourth proportional to 239,315.58, 330,256.80 and 137,332.92 is: 189,520.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,315.58 : 330,256.80 = 137,332.92 : x
  2. Step 2: Convert to fraction form
    239,315.58/330,256.80 = 137,332.92/x
  3. Step 3: Cross multiply
    239,315.58x = 330,256.80 × 137,332.92
  4. Step 4: Simplify right side
    239,315.58x = 45,355,130,693.86
  5. Step 5: Solve for x
    x = 45,355,130,693.86/239,315.58
  6. Step 6: Final answer
    x = 189,520.18

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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.