Home / 370,389.47-511,221.33-209,337.93

Finding the Fourth Proportional to 370,389.47, 511,221.33 and 209,337.93

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Solution

The fourth proportional to 370,389.47, 511,221.33 and 209,337.93 is: 288,933.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,389.47 : 511,221.33 = 209,337.93 : x
  2. Step 2: Convert to fraction form
    370,389.47/511,221.33 = 209,337.93/x
  3. Step 3: Cross multiply
    370,389.47x = 511,221.33 × 209,337.93
  4. Step 4: Simplify right side
    370,389.47x = 107,018,015,860.14
  5. Step 5: Solve for x
    x = 107,018,015,860.14/370,389.47
  6. Step 6: Final answer
    x = 288,933.75

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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.