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Finding the Fourth Proportional to 349,451.81, 482,127.51 and 284,809.89

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Solution

The fourth proportional to 349,451.81, 482,127.51 and 284,809.89 is: 392,943.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,451.81 : 482,127.51 = 284,809.89 : x
  2. Step 2: Convert to fraction form
    349,451.81/482,127.51 = 284,809.89/x
  3. Step 3: Cross multiply
    349,451.81x = 482,127.51 × 284,809.89
  4. Step 4: Simplify right side
    349,451.81x = 137,314,683,089.07
  5. Step 5: Solve for x
    x = 137,314,683,089.07/349,451.81
  6. Step 6: Final answer
    x = 392,943.12

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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.