Home / 305,019.18-420,941.94-175,909.62

Finding the Fourth Proportional to 305,019.18, 420,941.94 and 175,909.62

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Solution

The fourth proportional to 305,019.18, 420,941.94 and 175,909.62 is: 242,764.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,019.18 : 420,941.94 = 175,909.62 : x
  2. Step 2: Convert to fraction form
    305,019.18/420,941.94 = 175,909.62/x
  3. Step 3: Cross multiply
    305,019.18x = 420,941.94 × 175,909.62
  4. Step 4: Simplify right side
    305,019.18x = 74,047,736,707.46
  5. Step 5: Solve for x
    x = 74,047,736,707.46/305,019.18
  6. Step 6: Final answer
    x = 242,764.20

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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.