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Finding the Fourth Proportional to 354,011.48, 488,534.38 and 192,866.03

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Solution

The fourth proportional to 354,011.48, 488,534.38 and 192,866.03 is: 266,154.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,011.48 : 488,534.38 = 192,866.03 : x
  2. Step 2: Convert to fraction form
    354,011.48/488,534.38 = 192,866.03/x
  3. Step 3: Cross multiply
    354,011.48x = 488,534.38 × 192,866.03
  4. Step 4: Simplify right side
    354,011.48x = 94,221,686,389.11
  5. Step 5: Solve for x
    x = 94,221,686,389.11/354,011.48
  6. Step 6: Final answer
    x = 266,154.32

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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.