Home / 370,218.72-555,323.16-89,738.40

Finding the Fourth Proportional to 370,218.72, 555,323.16 and 89,738.40

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Solution

The fourth proportional to 370,218.72, 555,323.16 and 89,738.40 is: 134,606.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,218.72 : 555,323.16 = 89,738.40 : x
  2. Step 2: Convert to fraction form
    370,218.72/555,323.16 = 89,738.40/x
  3. Step 3: Cross multiply
    370,218.72x = 555,323.16 × 89,738.40
  4. Step 4: Simplify right side
    370,218.72x = 49,833,811,861.34
  5. Step 5: Solve for x
    x = 49,833,811,861.34/370,218.72
  6. Step 6: Final answer
    x = 134,606.41

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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.