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Finding the Fourth Proportional to 401,445.80, 602,022.90 and 201,699.80

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Solution

The fourth proportional to 401,445.80, 602,022.90 and 201,699.80 is: 302,476.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,445.80 : 602,022.90 = 201,699.80 : x
  2. Step 2: Convert to fraction form
    401,445.80/602,022.90 = 201,699.80/x
  3. Step 3: Cross multiply
    401,445.80x = 602,022.90 × 201,699.80
  4. Step 4: Simplify right side
    401,445.80x = 121,427,898,525.42
  5. Step 5: Solve for x
    x = 121,427,898,525.42/401,445.80
  6. Step 6: Final answer
    x = 302,476.45

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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.