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Finding the Fourth Proportional to 293,456.10, 439,795.35 and 260,019.30

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Solution

The fourth proportional to 293,456.10, 439,795.35 and 260,019.30 is: 389,684.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,456.10 : 439,795.35 = 260,019.30 : x
  2. Step 2: Convert to fraction form
    293,456.10/439,795.35 = 260,019.30/x
  3. Step 3: Cross multiply
    293,456.10x = 439,795.35 × 260,019.30
  4. Step 4: Simplify right side
    293,456.10x = 114,355,279,050.26
  5. Step 5: Solve for x
    x = 114,355,279,050.26/293,456.10
  6. Step 6: Final answer
    x = 389,684.45

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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.