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Finding the Fourth Proportional to 539,065.90, 808,362.01 and 201,870.06

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Solution

The fourth proportional to 539,065.90, 808,362.01 and 201,870.06 is: 302,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,065.90 : 808,362.01 = 201,870.06 : x
  2. Step 2: Convert to fraction form
    539,065.90/808,362.01 = 201,870.06/x
  3. Step 3: Cross multiply
    539,065.90x = 808,362.01 × 201,870.06
  4. Step 4: Simplify right side
    539,065.90x = 163,184,087,460.42
  5. Step 5: Solve for x
    x = 163,184,087,460.42/539,065.90
  6. Step 6: Final answer
    x = 302,716.40

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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.