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Finding the Fourth Proportional to 457,443.84, 631,226.88 and 256,235.52

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Solution

The fourth proportional to 457,443.84, 631,226.88 and 256,235.52 is: 353,579.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,443.84 : 631,226.88 = 256,235.52 : x
  2. Step 2: Convert to fraction form
    457,443.84/631,226.88 = 256,235.52/x
  3. Step 3: Cross multiply
    457,443.84x = 631,226.88 × 256,235.52
  4. Step 4: Simplify right side
    457,443.84x = 161,742,747,834.78
  5. Step 5: Solve for x
    x = 161,742,747,834.78/457,443.84
  6. Step 6: Final answer
    x = 353,579.46

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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.