Home / 380,428.02-525,006.99-210,662.13

Finding the Fourth Proportional to 380,428.02, 525,006.99 and 210,662.13

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Solution

The fourth proportional to 380,428.02, 525,006.99 and 210,662.13 is: 290,722.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,428.02 : 525,006.99 = 210,662.13 : x
  2. Step 2: Convert to fraction form
    380,428.02/525,006.99 = 210,662.13/x
  3. Step 3: Cross multiply
    380,428.02x = 525,006.99 × 210,662.13
  4. Step 4: Simplify right side
    380,428.02x = 110,599,090,778.29
  5. Step 5: Solve for x
    x = 110,599,090,778.29/380,428.02
  6. Step 6: Final answer
    x = 290,722.78

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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.