Home / 393,339.06-589,920.75-153,459.35

Finding the Fourth Proportional to 393,339.06, 589,920.75 and 153,459.35

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Solution

The fourth proportional to 393,339.06, 589,920.75 and 153,459.35 is: 230,154.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,339.06 : 589,920.75 = 153,459.35 : x
  2. Step 2: Convert to fraction form
    393,339.06/589,920.75 = 153,459.35/x
  3. Step 3: Cross multiply
    393,339.06x = 589,920.75 × 153,459.35
  4. Step 4: Simplify right side
    393,339.06x = 90,528,854,846.51
  5. Step 5: Solve for x
    x = 90,528,854,846.51/393,339.06
  6. Step 6: Final answer
    x = 230,154.75

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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.