Home / 386,384.10-579,580.20-105,901.35

Finding the Fourth Proportional to 386,384.10, 579,580.20 and 105,901.35

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Solution

The fourth proportional to 386,384.10, 579,580.20 and 105,901.35 is: 158,853.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,384.10 : 579,580.20 = 105,901.35 : x
  2. Step 2: Convert to fraction form
    386,384.10/579,580.20 = 105,901.35/x
  3. Step 3: Cross multiply
    386,384.10x = 579,580.20 × 105,901.35
  4. Step 4: Simplify right side
    386,384.10x = 61,378,325,613.27
  5. Step 5: Solve for x
    x = 61,378,325,613.27/386,384.10
  6. Step 6: Final answer
    x = 158,853.14

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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.