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Finding the Fourth Proportional to 356,290.56, 492,011.52 and 266,711.04

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Solution

The fourth proportional to 356,290.56, 492,011.52 and 266,711.04 is: 368,308.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,290.56 : 492,011.52 = 266,711.04 : x
  2. Step 2: Convert to fraction form
    356,290.56/492,011.52 = 266,711.04/x
  3. Step 3: Cross multiply
    356,290.56x = 492,011.52 × 266,711.04
  4. Step 4: Simplify right side
    356,290.56x = 131,224,904,191.18
  5. Step 5: Solve for x
    x = 131,224,904,191.18/356,290.56
  6. Step 6: Final answer
    x = 368,308.68

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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.