Home / 370,212.15-555,318.26-89,729.40

Finding the Fourth Proportional to 370,212.15, 555,318.26 and 89,729.40

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Solution

The fourth proportional to 370,212.15, 555,318.26 and 89,729.40 is: 134,594.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,212.15 : 555,318.26 = 89,729.40 : x
  2. Step 2: Convert to fraction form
    370,212.15/555,318.26 = 89,729.40/x
  3. Step 3: Cross multiply
    370,212.15x = 555,318.26 × 89,729.40
  4. Step 4: Simplify right side
    370,212.15x = 49,828,373,830.20
  5. Step 5: Solve for x
    x = 49,828,373,830.20/370,212.15
  6. Step 6: Final answer
    x = 134,594.11

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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.