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Finding the Fourth Proportional to 539,064.15, 808,359.39 and 201,868.30

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Solution

The fourth proportional to 539,064.15, 808,359.39 and 201,868.30 is: 302,713.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,064.15 : 808,359.39 = 201,868.30 : x
  2. Step 2: Convert to fraction form
    539,064.15/808,359.39 = 201,868.30/x
  3. Step 3: Cross multiply
    539,064.15x = 808,359.39 × 201,868.30
  4. Step 4: Simplify right side
    539,064.15x = 163,182,136,858.79
  5. Step 5: Solve for x
    x = 163,182,136,858.79/539,064.15
  6. Step 6: Final answer
    x = 302,713.76

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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.