Home / 389,257.02-537,174.45-210,409.02

Finding the Fourth Proportional to 389,257.02, 537,174.45 and 210,409.02

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Solution

The fourth proportional to 389,257.02, 537,174.45 and 210,409.02 is: 290,364.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,257.02 : 537,174.45 = 210,409.02 : x
  2. Step 2: Convert to fraction form
    389,257.02/537,174.45 = 210,409.02/x
  3. Step 3: Cross multiply
    389,257.02x = 537,174.45 × 210,409.02
  4. Step 4: Simplify right side
    389,257.02x = 113,026,349,593.54
  5. Step 5: Solve for x
    x = 113,026,349,593.54/389,257.02
  6. Step 6: Final answer
    x = 290,364.32

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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.