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Finding the Fourth Proportional to 293,507.60, 439,872.60 and 260,070.80

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Solution

The fourth proportional to 293,507.60, 439,872.60 and 260,070.80 is: 389,761.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,507.60 : 439,872.60 = 260,070.80 : x
  2. Step 2: Convert to fraction form
    293,507.60/439,872.60 = 260,070.80/x
  3. Step 3: Cross multiply
    293,507.60x = 439,872.60 × 260,070.80
  4. Step 4: Simplify right side
    293,507.60x = 114,398,018,980.08
  5. Step 5: Solve for x
    x = 114,398,018,980.08/293,507.60
  6. Step 6: Final answer
    x = 389,761.69

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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.