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Finding the Fourth Proportional to 320,287.32, 441,710.15 and 265,753.08

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Solution

The fourth proportional to 320,287.32, 441,710.15 and 265,753.08 is: 366,501.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,287.32 : 441,710.15 = 265,753.08 : x
  2. Step 2: Convert to fraction form
    320,287.32/441,710.15 = 265,753.08/x
  3. Step 3: Cross multiply
    320,287.32x = 441,710.15 × 265,753.08
  4. Step 4: Simplify right side
    320,287.32x = 117,385,831,501.00
  5. Step 5: Solve for x
    x = 117,385,831,501.00/320,287.32
  6. Step 6: Final answer
    x = 366,501.65

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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.