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Finding the Fourth Proportional to 553,565.70, 830,542.95 and 238,119.30

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Solution

The fourth proportional to 553,565.70, 830,542.95 and 238,119.30 is: 357,262.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,565.70 : 830,542.95 = 238,119.30 : x
  2. Step 2: Convert to fraction form
    553,565.70/830,542.95 = 238,119.30/x
  3. Step 3: Cross multiply
    553,565.70x = 830,542.95 × 238,119.30
  4. Step 4: Simplify right side
    553,565.70x = 197,768,305,873.94
  5. Step 5: Solve for x
    x = 197,768,305,873.94/553,565.70
  6. Step 6: Final answer
    x = 357,262.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.