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Finding the Fourth Proportional to 260,362.96, 390,691.96 and 102,702.13

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Solution

The fourth proportional to 260,362.96, 390,691.96 and 102,702.13 is: 154,111.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,362.96 : 390,691.96 = 102,702.13 : x
  2. Step 2: Convert to fraction form
    260,362.96/390,691.96 = 102,702.13/x
  3. Step 3: Cross multiply
    260,362.96x = 390,691.96 × 102,702.13
  4. Step 4: Simplify right side
    260,362.96x = 40,124,895,232.39
  5. Step 5: Solve for x
    x = 40,124,895,232.39/260,362.96
  6. Step 6: Final answer
    x = 154,111.38

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1.5x scale

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.