Home / 387,343.28-581,048.40-106,860.53

Finding the Fourth Proportional to 387,343.28, 581,048.40 and 106,860.53

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Solution

The fourth proportional to 387,343.28, 581,048.40 and 106,860.53 is: 160,300.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,343.28 : 581,048.40 = 106,860.53 : x
  2. Step 2: Convert to fraction form
    387,343.28/581,048.40 = 106,860.53/x
  3. Step 3: Cross multiply
    387,343.28x = 581,048.40 × 106,860.53
  4. Step 4: Simplify right side
    387,343.28x = 62,091,141,833
  5. Step 5: Solve for x
    x = 62,091,141,833/387,343.28
  6. Step 6: Final answer
    x = 160,300.04

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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.