Home / 369,979.60-554,726.40-145,204.60

Finding the Fourth Proportional to 369,979.60, 554,726.40 and 145,204.60

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Solution

The fourth proportional to 369,979.60, 554,726.40 and 145,204.60 is: 217,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,979.60 : 554,726.40 = 145,204.60 : x
  2. Step 2: Convert to fraction form
    369,979.60/554,726.40 = 145,204.60/x
  3. Step 3: Cross multiply
    369,979.60x = 554,726.40 × 145,204.60
  4. Step 4: Simplify right side
    369,979.60x = 80,548,825,021.44
  5. Step 5: Solve for x
    x = 80,548,825,021.44/369,979.60
  6. Step 6: Final answer
    x = 217,711.53

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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.