Home / 305,303.51-420,832.03-240,667.34

Finding the Fourth Proportional to 305,303.51, 420,832.03 and 240,667.34

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Solution

The fourth proportional to 305,303.51, 420,832.03 and 240,667.34 is: 331,737.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,303.51 : 420,832.03 = 240,667.34 : x
  2. Step 2: Convert to fraction form
    305,303.51/420,832.03 = 240,667.34/x
  3. Step 3: Cross multiply
    305,303.51x = 420,832.03 × 240,667.34
  4. Step 4: Simplify right side
    305,303.51x = 101,280,525,246.90
  5. Step 5: Solve for x
    x = 101,280,525,246.90/305,303.51
  6. Step 6: Final answer
    x = 331,737.18

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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.