Home / 370,543.02-511,375.32-209,412.96

Finding the Fourth Proportional to 370,543.02, 511,375.32 and 209,412.96

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Solution

The fourth proportional to 370,543.02, 511,375.32 and 209,412.96 is: 289,004.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,543.02 : 511,375.32 = 209,412.96 : x
  2. Step 2: Convert to fraction form
    370,543.02/511,375.32 = 209,412.96/x
  3. Step 3: Cross multiply
    370,543.02x = 511,375.32 × 209,412.96
  4. Step 4: Simplify right side
    370,543.02x = 107,088,619,432.15
  5. Step 5: Solve for x
    x = 107,088,619,432.15/370,543.02
  6. Step 6: Final answer
    x = 289,004.55

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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.