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Finding the Fourth Proportional to 380,246.40, 525,754.80 and 333,007.20

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Solution

The fourth proportional to 380,246.40, 525,754.80 and 333,007.20 is: 460,438.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,246.40 : 525,754.80 = 333,007.20 : x
  2. Step 2: Convert to fraction form
    380,246.40/525,754.80 = 333,007.20/x
  3. Step 3: Cross multiply
    380,246.40x = 525,754.80 × 333,007.20
  4. Step 4: Simplify right side
    380,246.40x = 175,080,133,834.56
  5. Step 5: Solve for x
    x = 175,080,133,834.56/380,246.40
  6. Step 6: Final answer
    x = 460,438.64

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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.