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Finding the Fourth Proportional to 482,071.51, 665,290.70 and 267,220.63

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Solution

The fourth proportional to 482,071.51, 665,290.70 and 267,220.63 is: 368,782.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,071.51 : 665,290.70 = 267,220.63 : x
  2. Step 2: Convert to fraction form
    482,071.51/665,290.70 = 267,220.63/x
  3. Step 3: Cross multiply
    482,071.51x = 665,290.70 × 267,220.63
  4. Step 4: Simplify right side
    482,071.51x = 177,779,398,651.04
  5. Step 5: Solve for x
    x = 177,779,398,651.04/482,071.51
  6. Step 6: Final answer
    x = 368,782.21

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1.5x scale

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.