Home / 370,143.48-555,216.66-89,660.28

Finding the Fourth Proportional to 370,143.48, 555,216.66 and 89,660.28

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Solution

The fourth proportional to 370,143.48, 555,216.66 and 89,660.28 is: 134,490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,143.48 : 555,216.66 = 89,660.28 : x
  2. Step 2: Convert to fraction form
    370,143.48/555,216.66 = 89,660.28/x
  3. Step 3: Cross multiply
    370,143.48x = 555,216.66 × 89,660.28
  4. Step 4: Simplify right side
    370,143.48x = 49,780,881,196.26
  5. Step 5: Solve for x
    x = 49,780,881,196.26/370,143.48
  6. Step 6: Final answer
    x = 134,490.77

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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.