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Finding the Fourth Proportional to 382,955, 528,490.06 and 239,669.24

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Solution

The fourth proportional to 382,955, 528,490.06 and 239,669.24 is: 330,751.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,955 : 528,490.06 = 239,669.24 : x
  2. Step 2: Convert to fraction form
    382,955/528,490.06 = 239,669.24/x
  3. Step 3: Cross multiply
    382,955x = 528,490.06 × 239,669.24
  4. Step 4: Simplify right side
    382,955x = 126,662,811,027.75
  5. Step 5: Solve for x
    x = 126,662,811,027.75/382,955
  6. Step 6: Final answer
    x = 330,751.16

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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.