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Finding the Fourth Proportional to 218,616.61, 301,830.21 and 178,426.24

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Solution

The fourth proportional to 218,616.61, 301,830.21 and 178,426.24 is: 246,341.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,616.61 : 301,830.21 = 178,426.24 : x
  2. Step 2: Convert to fraction form
    218,616.61/301,830.21 = 178,426.24/x
  3. Step 3: Cross multiply
    218,616.61x = 301,830.21 × 178,426.24
  4. Step 4: Simplify right side
    218,616.61x = 53,854,429,488.71
  5. Step 5: Solve for x
    x = 53,854,429,488.71/218,616.61
  6. Step 6: Final answer
    x = 246,341.89

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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.