Home / 406,865.90-561,445.49-223,075.05

Finding the Fourth Proportional to 406,865.90, 561,445.49 and 223,075.05

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Solution

The fourth proportional to 406,865.90, 561,445.49 and 223,075.05 is: 307,827.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,865.90 : 561,445.49 = 223,075.05 : x
  2. Step 2: Convert to fraction form
    406,865.90/561,445.49 = 223,075.05/x
  3. Step 3: Cross multiply
    406,865.90x = 561,445.49 × 223,075.05
  4. Step 4: Simplify right side
    406,865.90x = 125,244,479,206.29
  5. Step 5: Solve for x
    x = 125,244,479,206.29/406,865.90
  6. Step 6: Final answer
    x = 307,827.42

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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.