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Finding the Fourth Proportional to 370,155.04, 510,813.92 and 206,811.58

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Solution

The fourth proportional to 370,155.04, 510,813.92 and 206,811.58 is: 285,399.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,155.04 : 510,813.92 = 206,811.58 : x
  2. Step 2: Convert to fraction form
    370,155.04/510,813.92 = 206,811.58/x
  3. Step 3: Cross multiply
    370,155.04x = 510,813.92 × 206,811.58
  4. Step 4: Simplify right side
    370,155.04x = 105,642,233,881.19
  5. Step 5: Solve for x
    x = 105,642,233,881.19/370,155.04
  6. Step 6: Final answer
    x = 285,399.96

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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.