Home / 380,429.02-525,008.37-210,663.13

Finding the Fourth Proportional to 380,429.02, 525,008.37 and 210,663.13

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Solution

The fourth proportional to 380,429.02, 525,008.37 and 210,663.13 is: 290,724.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,429.02 : 525,008.37 = 210,663.13 : x
  2. Step 2: Convert to fraction form
    380,429.02/525,008.37 = 210,663.13/x
  3. Step 3: Cross multiply
    380,429.02x = 525,008.37 × 210,663.13
  4. Step 4: Simplify right side
    380,429.02x = 110,599,906,500.40
  5. Step 5: Solve for x
    x = 110,599,906,500.40/380,429.02
  6. Step 6: Final answer
    x = 290,724.16

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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.