Home / 319,894.03-479,839.66-130,312.11

Finding the Fourth Proportional to 319,894.03, 479,839.66 and 130,312.11

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Solution

The fourth proportional to 319,894.03, 479,839.66 and 130,312.11 is: 195,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,894.03 : 479,839.66 = 130,312.11 : x
  2. Step 2: Convert to fraction form
    319,894.03/479,839.66 = 130,312.11/x
  3. Step 3: Cross multiply
    319,894.03x = 479,839.66 × 130,312.11
  4. Step 4: Simplify right side
    319,894.03x = 62,528,918,063.81
  5. Step 5: Solve for x
    x = 62,528,918,063.81/319,894.03
  6. Step 6: Final answer
    x = 195,467.60

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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.