Home / 209,263.80-313,895.70-146,278.20

Finding the Fourth Proportional to 209,263.80, 313,895.70 and 146,278.20

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Solution

The fourth proportional to 209,263.80, 313,895.70 and 146,278.20 is: 219,417.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,263.80 : 313,895.70 = 146,278.20 : x
  2. Step 2: Convert to fraction form
    209,263.80/313,895.70 = 146,278.20/x
  3. Step 3: Cross multiply
    209,263.80x = 313,895.70 × 146,278.20
  4. Step 4: Simplify right side
    209,263.80x = 45,916,097,983.74
  5. Step 5: Solve for x
    x = 45,916,097,983.74/209,263.80
  6. Step 6: Final answer
    x = 219,417.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.