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Finding the Fourth Proportional to 319,700.16, 479,549.43 and 300,213.18

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Solution

The fourth proportional to 319,700.16, 479,549.43 and 300,213.18 is: 450,319.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,700.16 : 479,549.43 = 300,213.18 : x
  2. Step 2: Convert to fraction form
    319,700.16/479,549.43 = 300,213.18/x
  3. Step 3: Cross multiply
    319,700.16x = 479,549.43 × 300,213.18
  4. Step 4: Simplify right side
    319,700.16x = 143,967,059,347.49
  5. Step 5: Solve for x
    x = 143,967,059,347.49/319,700.16
  6. Step 6: Final answer
    x = 450,319.01

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1.5x scale

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.