Home / 313,418.25-432,309.29-210,055.50

Finding the Fourth Proportional to 313,418.25, 432,309.29 and 210,055.50

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Solution

The fourth proportional to 313,418.25, 432,309.29 and 210,055.50 is: 289,737.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,418.25 : 432,309.29 = 210,055.50 : x
  2. Step 2: Convert to fraction form
    313,418.25/432,309.29 = 210,055.50/x
  3. Step 3: Cross multiply
    313,418.25x = 432,309.29 × 210,055.50
  4. Step 4: Simplify right side
    313,418.25x = 90,808,943,015.32
  5. Step 5: Solve for x
    x = 90,808,943,015.32/313,418.25
  6. Step 6: Final answer
    x = 289,737.25

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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.