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Finding the Fourth Proportional to 383,810.80, 529,875.32 and 266,150.20

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Solution

The fourth proportional to 383,810.80, 529,875.32 and 266,150.20 is: 367,437.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,810.80 : 529,875.32 = 266,150.20 : x
  2. Step 2: Convert to fraction form
    383,810.80/529,875.32 = 266,150.20/x
  3. Step 3: Cross multiply
    383,810.80x = 529,875.32 × 266,150.20
  4. Step 4: Simplify right side
    383,810.80x = 141,026,422,393.06
  5. Step 5: Solve for x
    x = 141,026,422,393.06/383,810.80
  6. Step 6: Final answer
    x = 367,437.35

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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.