Home / 370,203.80-555,305.70-89,721.05

Finding the Fourth Proportional to 370,203.80, 555,305.70 and 89,721.05

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Solution

The fourth proportional to 370,203.80, 555,305.70 and 89,721.05 is: 134,581.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,203.80 : 555,305.70 = 89,721.05 : x
  2. Step 2: Convert to fraction form
    370,203.80/555,305.70 = 89,721.05/x
  3. Step 3: Cross multiply
    370,203.80x = 555,305.70 × 89,721.05
  4. Step 4: Simplify right side
    370,203.80x = 49,822,610,474.99
  5. Step 5: Solve for x
    x = 49,822,610,474.99/370,203.80
  6. Step 6: Final answer
    x = 134,581.58

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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.