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Finding the Fourth Proportional to 240,438.40, 330,848.32 and 233,133.76

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Solution

The fourth proportional to 240,438.40, 330,848.32 and 233,133.76 is: 320,796.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,438.40 : 330,848.32 = 233,133.76 : x
  2. Step 2: Convert to fraction form
    240,438.40/330,848.32 = 233,133.76/x
  3. Step 3: Cross multiply
    240,438.40x = 330,848.32 × 233,133.76
  4. Step 4: Simplify right side
    240,438.40x = 77,131,912,831.28
  5. Step 5: Solve for x
    x = 77,131,912,831.28/240,438.40
  6. Step 6: Final answer
    x = 320,796.98

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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.