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Finding the Fourth Proportional to 375,574, 563,361.72 and 91,264.81

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Solution

The fourth proportional to 375,574, 563,361.72 and 91,264.81 is: 136,897.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,574 : 563,361.72 = 91,264.81 : x
  2. Step 2: Convert to fraction form
    375,574/563,361.72 = 91,264.81/x
  3. Step 3: Cross multiply
    375,574x = 563,361.72 × 91,264.81
  4. Step 4: Simplify right side
    375,574x = 51,415,100,337.07
  5. Step 5: Solve for x
    x = 51,415,100,337.07/375,574
  6. Step 6: Final answer
    x = 136,897.39

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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.