Home / 389,207.02-537,105.45-210,359.02

Finding the Fourth Proportional to 389,207.02, 537,105.45 and 210,359.02

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Solution

The fourth proportional to 389,207.02, 537,105.45 and 210,359.02 is: 290,295.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,207.02 : 537,105.45 = 210,359.02 : x
  2. Step 2: Convert to fraction form
    389,207.02/537,105.45 = 210,359.02/x
  3. Step 3: Cross multiply
    389,207.02x = 537,105.45 × 210,359.02
  4. Step 4: Simplify right side
    389,207.02x = 112,984,976,098.66
  5. Step 5: Solve for x
    x = 112,984,976,098.66/389,207.02
  6. Step 6: Final answer
    x = 290,295.32

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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.