Home / 371,988.19-557,898.45-105,742.81

Finding the Fourth Proportional to 371,988.19, 557,898.45 and 105,742.81

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Solution

The fourth proportional to 371,988.19, 557,898.45 and 105,742.81 is: 158,590.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,988.19 : 557,898.45 = 105,742.81 : x
  2. Step 2: Convert to fraction form
    371,988.19/557,898.45 = 105,742.81/x
  3. Step 3: Cross multiply
    371,988.19x = 557,898.45 × 105,742.81
  4. Step 4: Simplify right side
    371,988.19x = 58,993,749,797.64
  5. Step 5: Solve for x
    x = 58,993,749,797.64/371,988.19
  6. Step 6: Final answer
    x = 158,590.38

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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.