Home / 370,730.32-556,010.16-221,012.80

Finding the Fourth Proportional to 370,730.32, 556,010.16 and 221,012.80

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Solution

The fourth proportional to 370,730.32, 556,010.16 and 221,012.80 is: 331,468.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,730.32 : 556,010.16 = 221,012.80 : x
  2. Step 2: Convert to fraction form
    370,730.32/556,010.16 = 221,012.80/x
  3. Step 3: Cross multiply
    370,730.32x = 556,010.16 × 221,012.80
  4. Step 4: Simplify right side
    370,730.32x = 122,885,362,290.05
  5. Step 5: Solve for x
    x = 122,885,362,290.05/370,730.32
  6. Step 6: Final answer
    x = 331,468.34

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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.