Home / 368,278.46-508,148.05-215,287.07

Finding the Fourth Proportional to 368,278.46, 508,148.05 and 215,287.07

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Solution

The fourth proportional to 368,278.46, 508,148.05 and 215,287.07 is: 297,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,278.46 : 508,148.05 = 215,287.07 : x
  2. Step 2: Convert to fraction form
    368,278.46/508,148.05 = 215,287.07/x
  3. Step 3: Cross multiply
    368,278.46x = 508,148.05 × 215,287.07
  4. Step 4: Simplify right side
    368,278.46x = 109,397,703,734.28
  5. Step 5: Solve for x
    x = 109,397,703,734.28/368,278.46
  6. Step 6: Final answer
    x = 297,051.60

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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.