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Finding the Fourth Proportional to 354,888.95, 531,794.80 and 260,182.19

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Solution

The fourth proportional to 354,888.95, 531,794.80 and 260,182.19 is: 389,878.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,888.95 : 531,794.80 = 260,182.19 : x
  2. Step 2: Convert to fraction form
    354,888.95/531,794.80 = 260,182.19/x
  3. Step 3: Cross multiply
    354,888.95x = 531,794.80 × 260,182.19
  4. Step 4: Simplify right side
    354,888.95x = 138,363,537,349.33
  5. Step 5: Solve for x
    x = 138,363,537,349.33/354,888.95
  6. Step 6: Final answer
    x = 389,878.41

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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.