Home / 345,316.16-476,806.56-270,079.04

Finding the Fourth Proportional to 345,316.16, 476,806.56 and 270,079.04

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Solution

The fourth proportional to 345,316.16, 476,806.56 and 270,079.04 is: 372,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,316.16 : 476,806.56 = 270,079.04 : x
  2. Step 2: Convert to fraction form
    345,316.16/476,806.56 = 270,079.04/x
  3. Step 3: Cross multiply
    345,316.16x = 476,806.56 × 270,079.04
  4. Step 4: Simplify right side
    345,316.16x = 128,775,457,990.50
  5. Step 5: Solve for x
    x = 128,775,457,990.50/345,316.16
  6. Step 6: Final answer
    x = 372,920.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.