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Finding the Fourth Proportional to 382,622.82, 528,017.01 and 210,551.28

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Solution

The fourth proportional to 382,622.82, 528,017.01 and 210,551.28 is: 290,559.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,622.82 : 528,017.01 = 210,551.28 : x
  2. Step 2: Convert to fraction form
    382,622.82/528,017.01 = 210,551.28/x
  3. Step 3: Cross multiply
    382,622.82x = 528,017.01 × 210,551.28
  4. Step 4: Simplify right side
    382,622.82x = 111,174,657,317.27
  5. Step 5: Solve for x
    x = 111,174,657,317.27/382,622.82
  6. Step 6: Final answer
    x = 290,559.40

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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.