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Finding the Fourth Proportional to 347,774.88, 479,700.72 and 272,192.16

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Solution

The fourth proportional to 347,774.88, 479,700.72 and 272,192.16 is: 375,446.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,774.88 : 479,700.72 = 272,192.16 : x
  2. Step 2: Convert to fraction form
    347,774.88/479,700.72 = 272,192.16/x
  3. Step 3: Cross multiply
    347,774.88x = 479,700.72 × 272,192.16
  4. Step 4: Simplify right side
    347,774.88x = 130,570,775,130.36
  5. Step 5: Solve for x
    x = 130,570,775,130.36/347,774.88
  6. Step 6: Final answer
    x = 375,446.25

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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.