Home / 370,430.26-555,641.34-89,947.78

Finding the Fourth Proportional to 370,430.26, 555,641.34 and 89,947.78

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Solution

The fourth proportional to 370,430.26, 555,641.34 and 89,947.78 is: 134,920.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,430.26 : 555,641.34 = 89,947.78 : x
  2. Step 2: Convert to fraction form
    370,430.26/555,641.34 = 89,947.78/x
  3. Step 3: Cross multiply
    370,430.26x = 555,641.34 × 89,947.78
  4. Step 4: Simplify right side
    370,430.26x = 49,978,705,009.23
  5. Step 5: Solve for x
    x = 49,978,705,009.23/370,430.26
  6. Step 6: Final answer
    x = 134,920.69

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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.